11987015034 has 32 divisors (see below), whose sum is σ = 24809688000. Its totient is φ = 3856495104.

The previous prime is 11987014997. The next prime is 11987015059. The reversal of 11987015034 is 43051078911.

It is a junction number, because it is equal to n+sod(n) for n = 11987014983 and 11987015001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540537 + ... + 562275.

It is an arithmetic number, because the mean of its divisors is an integer number (775302750).

Almost surely, 2^11987015034 is an apocalyptic number.

11987015034 is an abundant number, since it is smaller than the sum of its proper divisors (12822672966).

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

11987015034 is a wasteful number, since it uses less digits than its factorization.

11987015034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24942.

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 11987015034 in words is "eleven billion, nine hundred eighty-seven million, fifteen thousand, thirty-four".