31101013011 has 32 divisors (see below), whose sum is σ = 44229058560. Its totient is φ = 19398117024.

The previous prime is 31101012991. The next prime is 31101013063. The reversal of 31101013011 is 11031010113.

It is not a de Polignac number, because 31101013011 - 2⁵ = 31101012979 is a prime.

It is a super-2 number, since 2×31101013011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31101093011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556596 + ... + 609918.

It is an arithmetic number, because the mean of its divisors is an integer number (1382158080).

Almost surely, 2^31101013011 is an apocalyptic number.

31101013011 is a deficient number, since it is larger than the sum of its proper divisors (13128045549).

31101013011 is a wasteful number, since it uses less digits than its factorization.

31101013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53535.

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 31101013011 its reverse (11031010113), we get a palindrome (42132023124).

The spelling of 31101013011 in words is "thirty-one billion, one hundred one million, thirteen thousand, eleven".