102131321313130 has 16 divisors (see below), whose sum is σ = 183867701757480. Its totient is φ = 40845567771072.

The previous prime is 102131321313113. The next prime is 102131321313157. The reversal of 102131321313130 is 31313123131201.

It can be written as a sum of positive squares in 4 ways, for example, as 26766230084881 + 75365091228249 = 5173609^2 + 8681307^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102131321313095 and 102131321313104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870032649 + ... + 870150028.

Almost surely, 2^{102131321313130} is an apocalyptic number.

102131321313130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102131321313130 is a deficient number, since it is larger than the sum of its proper divisors (81736380444350).

102131321313130 is a wasteful number, since it uses less digits than its factorization.

102131321313130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740188553.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 102131321313130 its reverse (31313123131201), we get a palindrome (133444444444331).

The spelling of 102131321313130 in words is "one hundred two trillion, one hundred thirty-one billion, three hundred twenty-one million, three hundred thirteen thousand, one hundred thirty".