123130031102 has 64 divisors (see below), whose sum is σ = 215320472640. Its totient is φ = 52295153664.

The previous prime is 123130031093. The next prime is 123130031113. The reversal of 123130031102 is 201130031321.

It is a super-2 number, since 2×123130031102² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6854849 + ... + 6872787.

It is an arithmetic number, because the mean of its divisors is an integer number (3364382385).

Almost surely, 2^123130031102 is an apocalyptic number.

123130031102 is a deficient number, since it is larger than the sum of its proper divisors (92190441538).

123130031102 is a wasteful number, since it uses less digits than its factorization.

123130031102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18317.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123130031102 its reverse (201130031321), we get a palindrome (324260062423).

The spelling of 123130031102 in words is "one hundred twenty-three billion, one hundred thirty million, thirty-one thousand, one hundred two".