20131011102 has 64 divisors (see below), whose sum is σ = 41368320000. Its totient is φ = 6528638688.

The previous prime is 20131011067. The next prime is 20131011127. The reversal of 20131011102 is 20111013102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29474053 + ... + 29474735.

It is an arithmetic number, because the mean of its divisors is an integer number (646380000).

Almost surely, 2^20131011102 is an apocalyptic number.

20131011102 is an abundant number, since it is smaller than the sum of its proper divisors (21237308898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20131011102 is a wasteful number, since it uses less digits than its factorization.

20131011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485.

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

Adding to 20131011102 its reverse (20111013102), we get a palindrome (40242024204).

The spelling of 20131011102 in words is "twenty billion, one hundred thirty-one million, eleven thousand, one hundred two".