123130121030402 has 32 divisors (see below), whose sum is σ = 196865600477184. Its totient is φ = 57556666944000.

The previous prime is 123130121030381. The next prime is 123130121030407. The reversal of 123130121030402 is 204030121031321.

It is a super-2 number, since 2×123130121030402² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123130121030407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93364127 + ... + 94673757.

It is an arithmetic number, because the mean of its divisors is an integer number (6152050014912).

Almost surely, 2^{123130121030402} is an apocalyptic number.

123130121030402 is a deficient number, since it is larger than the sum of its proper divisors (73735479446782).

123130121030402 is a wasteful number, since it uses less digits than its factorization.

123130121030402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328114.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123130121030402 its reverse (204030121031321), we get a palindrome (327160242061723).

The spelling of 123130121030402 in words is "one hundred twenty-three trillion, one hundred thirty billion, one hundred twenty-one million, thirty thousand, four hundred two".