102021131313 has 32 divisors (see below), whose sum is σ = 159512985600. Its totient is φ = 64266038928.

The previous prime is 102021131299. The next prime is 102021131327. The reversal of 102021131313 is 313131120201.

It is an interprime number because it is at equal distance from previous prime (102021131299) and next prime (102021131327).

It is not a de Polignac number, because 102021131313 - 2¹⁴ = 102021114929 is a prime.

It is a super-2 number, since 2×102021131313² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102021131713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63145 + ... + 456102.

It is an arithmetic number, because the mean of its divisors is an integer number (4984780800).

Almost surely, 2^102021131313 is an apocalyptic number.

It is an amenable number.

102021131313 is a deficient number, since it is larger than the sum of its proper divisors (57491854287).

102021131313 is a wasteful number, since it uses less digits than its factorization.

102021131313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519658 (or 519652 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 102021131313 its reverse (313131120201), we get a palindrome (415152251514).

The spelling of 102021131313 in words is "one hundred two billion, twenty-one million, one hundred thirty-one thousand, three hundred thirteen".