11383972956 has 120 divisors (see below), whose sum is σ = 31578978816. Its totient is φ = 3563688960.

The previous prime is 11383972933. The next prime is 11383972969. The reversal of 11383972956 is 65927938311.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2867685 + ... + 2871651.

Almost surely, 2^11383972956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11383972956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15789489408).

11383972956 is an abundant number, since it is smaller than the sum of its proper divisors (20195005860).

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

11383972956 is a wasteful number, since it uses less digits than its factorization.

11383972956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521 (or 4510 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 11383972956 in words is "eleven billion, three hundred eighty-three million, nine hundred seventy-two thousand, nine hundred fifty-six".