123131214652 has 12 divisors (see below), whose sum is σ = 215608899240. Its totient is φ = 61528672016.

The previous prime is 123131214611. The next prime is 123131214667. The reversal of 123131214652 is 256412131321.

It is a super-2 number, since 2×123131214652² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9226327 + ... + 9239662.

It is an arithmetic number, because the mean of its divisors is an integer number (17967408270).

Almost surely, 2^123131214652 is an apocalyptic number.

It is an amenable number.

123131214652 is a deficient number, since it is larger than the sum of its proper divisors (92477684588).

123131214652 is a wasteful number, since it uses less digits than its factorization.

123131214652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18467660 (or 18467658 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

Adding to 123131214652 its reverse (256412131321), we get a palindrome (379543345973).

The spelling of 123131214652 in words is "one hundred twenty-three billion, one hundred thirty-one million, two hundred fourteen thousand, six hundred fifty-two".