202102313031 has 16 divisors (see below), whose sum is σ = 299420064000. Its totient is φ = 134730721944.

The previous prime is 202102313029. The next prime is 202102313107. The reversal of 202102313031 is 130313201202.

It is not a de Polignac number, because 202102313031 - 2¹ = 202102313029 is a prime.

It is a super-2 number, since 2×202102313031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202102312995 and 202102313013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102313431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 958420 + ... + 1150118.

It is an arithmetic number, because the mean of its divisors is an integer number (18713754000).

Almost surely, 2^202102313031 is an apocalyptic number.

202102313031 is a deficient number, since it is larger than the sum of its proper divisors (97317750969).

202102313031 is a wasteful number, since it uses less digits than its factorization.

202102313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230755 (or 230749 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 202102313031 its reverse (130313201202), we get a palindrome (332415514233).

The spelling of 202102313031 in words is "two hundred two billion, one hundred two million, three hundred thirteen thousand, thirty-one".