11651230020 has 24 divisors (see below), whose sum is σ = 32623444224. Its totient is φ = 3106994656.

The previous prime is 11651229971. The next prime is 11651230051. The reversal of 11651230020 is 2003215611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97093524 + ... + 97093643.

It is an arithmetic number, because the mean of its divisors is an integer number (1359310176).

Almost surely, 2^11651230020 is an apocalyptic number.

11651230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11651230020 is an abundant number, since it is smaller than the sum of its proper divisors (20972214204).

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

11651230020 is a wasteful number, since it uses less digits than its factorization.

11651230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194187179 (or 194187177 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 11651230020 its reverse (2003215611), we get a palindrome (13654445631).

The spelling of 11651230020 in words is "eleven billion, six hundred fifty-one million, two hundred thirty thousand, twenty".