31132020311313 has 32 divisors (see below), whose sum is σ = 42422069813760. Its totient is φ = 20298945945600.

The previous prime is 31132020311299. The next prime is 31132020311369. The reversal of 31132020311313 is 31311302023113.

It is not a de Polignac number, because 31132020311313 - 2⁵ = 31132020311281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31132020381313) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1441219713 + ... + 1441241313.

It is an arithmetic number, because the mean of its divisors is an integer number (1325689681680).

Almost surely, 2^{31132020311313} is an apocalyptic number.

It is an amenable number.

31132020311313 is a deficient number, since it is larger than the sum of its proper divisors (11290049502447).

31132020311313 is a wasteful number, since it uses less digits than its factorization.

31132020311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28297.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31132020311313 its reverse (31311302023113), we get a palindrome (62443322334426).

The spelling of 31132020311313 in words is "thirty-one trillion, one hundred thirty-two billion, twenty million, three hundred eleven thousand, three hundred thirteen".