31312201011 has 32 divisors (see below), whose sum is σ = 52772901888. Its totient is φ = 16069933440.

The previous prime is 31312200977. The next prime is 31312201013. The reversal of 31312201011 is 11010221313.

It is a happy number.

It is not a de Polignac number, because 31312201011 - 2⁷ = 31312200883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31312201013) 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, 1539855 + ... + 1560056.

It is an arithmetic number, because the mean of its divisors is an integer number (1649153184).

Almost surely, 2^31312201011 is an apocalyptic number.

31312201011 is a deficient number, since it is larger than the sum of its proper divisors (21460700877).

31312201011 is a wasteful number, since it uses less digits than its factorization.

31312201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099971.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31312201011 its reverse (11010221313), we get a palindrome (42322422324).

The spelling of 31312201011 in words is "thirty-one billion, three hundred twelve million, two hundred one thousand, eleven".