Search a number
-
+
31103002001123 = 1315791515223949
BaseRepresentation
bin1110001001001101110110…
…11000101011111011100011
311002010102021200112222120122
413010212323120223323203
513034042422003013443
6150052304420030455
76360055245612503
oct704467330537343
9132112250488518
1031103002001123
119a01788859a08
1235a3b7853242b
13144800114c840
1479757141ba03
1538e0d90b6968
hex1c49bb62bee3

31103002001123 has 8 divisors (see below), whose sum is σ = 33516753774000. Its totient is φ = 28692280679328.

The previous prime is 31103002001089. The next prime is 31103002001131. The reversal of 31103002001123 is 32110020030113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31103002001123 - 212 = 31103001997027 is a prime.

It is a super-2 number, since 2×311030020011232 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103002001173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757591448 + ... + 757632501.

It is an arithmetic number, because the mean of its divisors is an integer number (4189594221750).

Almost surely, 231103002001123 is an apocalyptic number.

31103002001123 is a deficient number, since it is larger than the sum of its proper divisors (2413751772877).

31103002001123 is a wasteful number, since it uses less digits than its factorization.

31103002001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515225541.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31103002001123 its reverse (32110020030113), we get a palindrome (63213022031236).

The spelling of 31103002001123 in words is "thirty-one trillion, one hundred three billion, two million, one thousand, one hundred twenty-three".

Divisors: 1 13 1579 20527 1515223949 19697911337 2392538615471 31103002001123