20111023130 has 64 divisors (see below), whose sum is σ = 41461383168. Its totient is φ = 6952080960.

The previous prime is 20111023129. The next prime is 20111023147. The reversal of 20111023130 is 3132011102.

It is an unprimeable number.

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, 388007 + ... + 436773.

It is an arithmetic number, because the mean of its divisors is an integer number (647834112).

Almost surely, 2^20111023130 is an apocalyptic number.

20111023130 is an abundant number, since it is smaller than the sum of its proper divisors (21350360038).

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

20111023130 is a wasteful number, since it uses less digits than its factorization.

20111023130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48971.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20111023130 its reverse (3132011102), we get a palindrome (23243034232).

The spelling of 20111023130 in words is "twenty billion, one hundred eleven million, twenty-three thousand, one hundred thirty".