102642231124 has 6 divisors (see below), whose sum is σ = 179623904474. Its totient is φ = 51321115560.

The previous prime is 102642231073. The next prime is 102642231143. The reversal of 102642231124 is 421132246201.

It can be written as a sum of positive squares in only one way, i.e., 96876562500 + 5765668624 = 311250^2 + 75932^2 .

It is a super-2 number, since 2×102642231124² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102642231092 and 102642231101.

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, 12830278887 + ... + 12830278894.

Almost surely, 2^102642231124 is an apocalyptic number.

It is an amenable number.

102642231124 is a deficient number, since it is larger than the sum of its proper divisors (76981673350).

102642231124 is a wasteful number, since it uses less digits than its factorization.

102642231124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25660557785 (or 25660557783 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 102642231124 its reverse (421132246201), we get a palindrome (523774477325).

The spelling of 102642231124 in words is "one hundred two billion, six hundred forty-two million, two hundred thirty-one thousand, one hundred twenty-four".