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123103030223131 = 71923311279352201
BaseRepresentation
bin11011111111011000101000…
…011000110010000100011011
3121010212112102211120221022121
4123333120220120302010123
5112113410001214120011
61113452430143402111
734633620563660440
oct3377305030620433
9533775384527277
10123103030223131
113625177a2a9522
12119822378b3337
13538c7484a323a
14225830b6199c7
15e372d4147e71
hex6ff62863211b

123103030223131 has 32 divisors (see below), whose sum is σ = 148743075686400. Its totient is φ = 99525228249600.

The previous prime is 123103030223123. The next prime is 123103030223143. The reversal of 123103030223131 is 131322030301321.

It is a cyclic number.

It is not a de Polignac number, because 123103030223131 - 23 = 123103030223123 is a prime.

It is a super-2 number, since 2×1231030302231312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123103030223096 and 123103030223105.

It is not an unprimeable number, because it can be changed into a prime (123103030223161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349348831 + ... + 349701031.

It is an arithmetic number, because the mean of its divisors is an integer number (4648221115200).

Almost surely, 2123103030223131 is an apocalyptic number.

123103030223131 is a deficient number, since it is larger than the sum of its proper divisors (25640045463269).

123103030223131 is a wasteful number, since it uses less digits than its factorization.

123103030223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363739.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 123103030223131 its reverse (131322030301321), we get a palindrome (254425060524452).

The spelling of 123103030223131 in words is "one hundred twenty-three trillion, one hundred three billion, thirty million, two hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 7 19 133 233 1631 4427 11279 30989 78953 214301 352201 1500107 2465407 2628007 6691819 18396049 46842733 49932133 82062833 349524931 574439831 1559193827 3972475079 10914356789 27807325553 75477026501 528339185507 925586693407 6479106853849 17586147174733 123103030223131