11215410987 has 24 divisors (see below), whose sum is σ = 16443619920. Its totient is φ = 6794444800.

The previous prime is 11215410979. The next prime is 11215410989. The reversal of 11215410987 is 78901451211.

It is not a de Polignac number, because 11215410987 - 2³ = 11215410979 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 1203787 + ... + 1213067.

It is an arithmetic number, because the mean of its divisors is an integer number (685150830).

Almost surely, 2^11215410987 is an apocalyptic number.

11215410987 is a deficient number, since it is larger than the sum of its proper divisors (5228208933).

11215410987 is a wasteful number, since it uses less digits than its factorization.

11215410987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12635 (or 12624 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 39.

The spelling of 11215410987 in words is "eleven billion, two hundred fifteen million, four hundred ten thousand, nine hundred eighty-seven".