1031131122102 has 48 divisors (see below), whose sum is σ = 2353945230000. Its totient is φ = 325309830912.

The previous prime is 1031131122037. The next prime is 1031131122127. The reversal of 1031131122102 is 2012211311301.

1031131122102 is a `hidden beast` number, since 10 + 311 + 311 + 22 + 10 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1078327 + ... + 1795842.

It is an arithmetic number, because the mean of its divisors is an integer number (49040525625).

Almost surely, 2^{1031131122102} is an apocalyptic number.

1031131122102 is an abundant number, since it is smaller than the sum of its proper divisors (1322814107898).

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

1031131122102 is a wasteful number, since it uses less digits than its factorization.

1031131122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875245 (or 2875242 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1031131122102 its reverse (2012211311301), we get a palindrome (3043342433403).

The spelling of 1031131122102 in words is "one trillion, thirty-one billion, one hundred thirty-one million, one hundred twenty-two thousand, one hundred two".