11612571020 has 12 divisors (see below), whose sum is σ = 24386399184. Its totient is φ = 4645028400.

The previous prime is 11612571011. The next prime is 11612571029. The reversal of 11612571020 is 2017521611.

It is an interprime number because it is at equal distance from previous prime (11612571011) and next prime (11612571029).

It is not an unprimeable number, because it can be changed into a prime (11612571029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290314256 + ... + 290314295.

It is an arithmetic number, because the mean of its divisors is an integer number (2032199932).

Almost surely, 2^11612571020 is an apocalyptic number.

11612571020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11612571020 is an abundant number, since it is smaller than the sum of its proper divisors (12773828164).

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

11612571020 is a wasteful number, since it uses less digits than its factorization.

11612571020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580628560 (or 580628558 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

The spelling of 11612571020 in words is "eleven billion, six hundred twelve million, five hundred seventy-one thousand, twenty".