11731140436 has 24 divisors (see below), whose sum is σ = 22355172000. Its totient is φ = 5365239264.

The previous prime is 11731140391. The next prime is 11731140461. The reversal of 11731140436 is 63404113711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11731140398 and 11731140407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2659126 + ... + 2663533.

It is an arithmetic number, because the mean of its divisors is an integer number (931465500).

Almost surely, 2^11731140436 is an apocalyptic number.

It is an amenable number.

11731140436 is a deficient number, since it is larger than the sum of its proper divisors (10624031564).

11731140436 is a wasteful number, since it uses less digits than its factorization.

11731140436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322711 (or 5322709 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 11731140436 in words is "eleven billion, seven hundred thirty-one million, one hundred forty thousand, four hundred thirty-six".