1031312330202 has 64 divisors (see below), whose sum is σ = 2571736946688. Its totient is φ = 267857400000.

The previous prime is 1031312330189. The next prime is 1031312330203. The reversal of 1031312330202 is 2020332131301.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1031312330203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9068452 + ... + 9181472.

It is an arithmetic number, because the mean of its divisors is an integer number (40183389792).

Almost surely, 2^{1031312330202} is an apocalyptic number.

1031312330202 is an abundant number, since it is smaller than the sum of its proper divisors (1540424616486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031312330202 is a wasteful number, since it uses less digits than its factorization.

1031312330202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132795.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1031312330202 its reverse (2020332131301), we get a palindrome (3051644461503).

The spelling of 1031312330202 in words is "one trillion, thirty-one billion, three hundred twelve million, three hundred thirty thousand, two hundred two".