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122312330231 = 7132103391657
BaseRepresentation
bin111000111101001100…
…0100000101111110111
3102200201011020011020212
41301322120200233313
54000443424031411
6132104533420035
711560004436650
oct1617230405767
9380634204225
10122312330231
1147966138043
121b85619a61b
13b6c3288900
145cc44a4527
1532aceb068b
hex1c7a620bf7

122312330231 has 12 divisors (see below), whose sum is σ = 151365387312. Its totient is φ = 96774590016.

The previous prime is 122312330227. The next prime is 122312330249. The reversal of 122312330231 is 132033213221.

It is not a de Polignac number, because 122312330231 - 22 = 122312330227 is a prime.

It is a super-2 number, since 2×1223123302312 (a number of 23 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 = 122312330197 and 122312330206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312330291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51694646 + ... + 51697011.

It is an arithmetic number, because the mean of its divisors is an integer number (12613782276).

Almost surely, 2122312330231 is an apocalyptic number.

122312330231 is a deficient number, since it is larger than the sum of its proper divisors (29053057081).

122312330231 is a wasteful number, since it uses less digits than its factorization.

122312330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103391690 (or 103391677 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 122312330231 its reverse (132033213221), we get a palindrome (254345543452).

The spelling of 122312330231 in words is "one hundred twenty-two billion, three hundred twelve million, three hundred thirty thousand, two hundred thirty-one".

Divisors: 1 7 13 91 169 1183 103391657 723741599 1344091541 9408640787 17473190033 122312330231