3131100021011 has 8 divisors (see below), whose sum is σ = 3191581012320. Its totient is φ = 3070671016192.

The previous prime is 3131100020929. The next prime is 3131100021013. The reversal of 3131100021011 is 1101200011313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3131100021011 - 2²² = 3131095826707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131100021013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12874991 + ... + 13115928.

It is an arithmetic number, because the mean of its divisors is an integer number (398947626540).

Almost surely, 2^{3131100021011} is an apocalyptic number.

3131100021011 is a deficient number, since it is larger than the sum of its proper divisors (60480991309).

3131100021011 is a wasteful number, since it uses less digits than its factorization.

3131100021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25993245.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 3131100021011 its reverse (1101200011313), we get a palindrome (4232300032324).

The spelling of 3131100021011 in words is "three trillion, one hundred thirty-one billion, one hundred million, twenty-one thousand, eleven".