123102042503131 has 4 divisors (see below), whose sum is σ = 123928230708000. Its totient is φ = 122275854298264.

The previous prime is 123102042503113. The next prime is 123102042503149. The reversal of 123102042503131 is 131305240201321.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (123102042503113) and next prime (123102042503149).

It is a cyclic number.

It is not a de Polignac number, because 123102042503131 - 2⁷ = 123102042503003 is a prime.

It is a super-2 number, since 2×123102042503131² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123102042503131.

It is not an unprimeable number, because it can be changed into a prime (123102042503171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413094102211 + ... + 413094102508.

It is an arithmetic number, because the mean of its divisors is an integer number (30982057677000).

Almost surely, 2^{123102042503131} is an apocalyptic number.

123102042503131 is a deficient number, since it is larger than the sum of its proper divisors (826188204869).

123102042503131 is an equidigital number, since it uses as much as digits as its factorization.

123102042503131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826188204868.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 123102042503131 its reverse (131305240201321), we get a palindrome (254407282704452).

The spelling of 123102042503131 in words is "one hundred twenty-three trillion, one hundred two billion, forty-two million, five hundred three thousand, one hundred thirty-one".