123131012010202 has 16 divisors (see below), whose sum is σ = 215990612430912. Its totient is φ = 51543214329600.

The previous prime is 123131012010179. The next prime is 123131012010229. The reversal of 123131012010202 is 202010210131321.

It is a super-2 number, since 2×123131012010202² (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 123131012010202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102268281799 + ... + 102268283002.

It is an arithmetic number, because the mean of its divisors is an integer number (13499413276932).

Almost surely, 2^{123131012010202} is an apocalyptic number.

123131012010202 is a deficient number, since it is larger than the sum of its proper divisors (92859600420710).

123131012010202 is a wasteful number, since it uses less digits than its factorization.

123131012010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204536564853.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123131012010202 its reverse (202010210131321), we get a palindrome (325141222141523).

The spelling of 123131012010202 in words is "one hundred twenty-three trillion, one hundred thirty-one billion, twelve million, ten thousand, two hundred two".