213031131000001 has 16 divisors (see below), whose sum is σ = 218435238805888. Its totient is φ = 207694791532800.

The previous prime is 213031130999977. The next prime is 213031131000007. The reversal of 213031131000001 is 100000131130312.

It is a cyclic number.

It is not a de Polignac number, because 213031131000001 - 2¹⁷ = 213031130868929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213031131000007) 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, 3149161 + ... + 20880121.

It is an arithmetic number, because the mean of its divisors is an integer number (13652202425368).

Almost surely, 2^{213031131000001} is an apocalyptic number.

It is an amenable number.

213031131000001 is a deficient number, since it is larger than the sum of its proper divisors (5404107805887).

213031131000001 is a wasteful number, since it uses less digits than its factorization.

213031131000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17732872.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 213031131000001 its reverse (100000131130312), we get a palindrome (313031262130313).

The spelling of 213031131000001 in words is "two hundred thirteen trillion, thirty-one billion, one hundred thirty-one million, one", and thus it is an aban number.