123102010213131 has 32 divisors (see below), whose sum is σ = 168535189912320. Its totient is φ = 79881676043904.

The previous prime is 123102010213093. The next prime is 123102010213153. The reversal of 123102010213131 is 131312010201321.

It is not a de Polignac number, because 123102010213131 - 2¹⁰ = 123102010212107 is a prime.

It is a super-2 number, since 2×123102010213131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123102010213098 and 123102010213107.

It is not an unprimeable number, because it can be changed into a prime (123102010413131) 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, 826130125 + ... + 826279121.

It is an arithmetic number, because the mean of its divisors is an integer number (5266724684760).

Almost surely, 2^{123102010213131} is an apocalyptic number.

123102010213131 is a deficient number, since it is larger than the sum of its proper divisors (45433179699189).

123102010213131 is a wasteful number, since it uses less digits than its factorization.

123102010213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171195.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 123102010213131 its reverse (131312010201321), we get a palindrome (254414020414452).

The spelling of 123102010213131 in words is "one hundred twenty-three trillion, one hundred two billion, ten million, two hundred thirteen thousand, one hundred thirty-one".