11215410980 has 12 divisors (see below), whose sum is σ = 23552363100. Its totient is φ = 4486164384.

The previous prime is 11215410979. The next prime is 11215410989. The reversal of 11215410980 is 8901451211.

It can be written as a sum of positive squares in 2 ways, for example, as 1525371136 + 9690039844 = 39056^2 + 98438^2 .

It is not an unprimeable number, because it can be changed into a prime (11215410989) 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, 280385255 + ... + 280385294.

It is an arithmetic number, because the mean of its divisors is an integer number (1962696925).

Almost surely, 2^11215410980 is an apocalyptic number.

11215410980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11215410980 is an abundant number, since it is smaller than the sum of its proper divisors (12336952120).

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

11215410980 is a wasteful number, since it uses less digits than its factorization.

11215410980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560770558 (or 560770556 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 32.

The spelling of 11215410980 in words is "eleven billion, two hundred fifteen million, four hundred ten thousand, nine hundred eighty".