123130203124 has 6 divisors (see below), whose sum is σ = 215477855474. Its totient is φ = 61565101560.

The previous prime is 123130203101. The next prime is 123130203137. The reversal of 123130203124 is 421302031321.

It can be written as a sum of positive squares in only one way, i.e., 123123792100 + 6411024 = 350890^2 + 2532^2 .

It is a super-2 number, since 2×123130203124² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123130203095 and 123130203104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15391275387 + ... + 15391275394.

Almost surely, 2^123130203124 is an apocalyptic number.

It is an amenable number.

123130203124 is a deficient number, since it is larger than the sum of its proper divisors (92347652350).

123130203124 is a wasteful number, since it uses less digits than its factorization.

123130203124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30782550785 (or 30782550783 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123130203124 its reverse (421302031321), we get a palindrome (544432234445).

The spelling of 123130203124 in words is "one hundred twenty-three billion, one hundred thirty million, two hundred three thousand, one hundred twenty-four".