102431012 has 6 divisors (see below), whose sum is σ = 179254278. Its totient is φ = 51215504.

The previous prime is 102431009. The next prime is 102431023. The reversal of 102431012 is 210134201.

It can be written as a sum of positive squares in only one way, i.e., 99520576 + 2910436 = 9976^2 + 1706^2 .

It is a super-2 number, since 2×102431012² = 20984224438688288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12803873 + ... + 12803880.

It is an arithmetic number, because the mean of its divisors is an integer number (29875713).

Almost surely, 2^102431012 is an apocalyptic number.

It is an amenable number.

102431012 is a deficient number, since it is larger than the sum of its proper divisors (76823266).

102431012 is a wasteful number, since it uses less digits than its factorization.

102431012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25607757 (or 25607755 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102431012 is about 10120.8207177086. The cubic root of 102431012 is about 467.8900623252.

Adding to 102431012 its reverse (210134201), we get a palindrome (312565213).

The spelling of 102431012 in words is "one hundred two million, four hundred thirty-one thousand, twelve".