1210020313131 has 32 divisors (see below), whose sum is σ = 2048818106880. Its totient is φ = 691404247008.

The previous prime is 1210020313121. The next prime is 1210020313133. The reversal of 1210020313131 is 1313130200121.

It is not a de Polignac number, because 1210020313131 - 2¹¹ = 1210020311083 is a prime.

It is a super-2 number, since 2×1210020313131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210020313133) 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, 3719725 + ... + 4031921.

It is an arithmetic number, because the mean of its divisors is an integer number (64025565840).

Almost surely, 2^{1210020313131} is an apocalyptic number.

1210020313131 is a deficient number, since it is larger than the sum of its proper divisors (838797793749).

1210020313131 is a wasteful number, since it uses less digits than its factorization.

1210020313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332720 (or 332714 counting only the distinct ones).

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

Adding to 1210020313131 its reverse (1313130200121), we get a palindrome (2523150513252).

The spelling of 1210020313131 in words is "one trillion, two hundred ten billion, twenty million, three hundred thirteen thousand, one hundred thirty-one".