11940946931 has 8 divisors (see below), whose sum is σ = 12670789824. Its totient is φ = 11214152320.

The previous prime is 11940946883. The next prime is 11940946951. The reversal of 11940946931 is 13964904911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11940946931 is a prime.

It is a super-2 number, since 2×11940946931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11940946951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753995 + ... + 769668.

It is an arithmetic number, because the mean of its divisors is an integer number (1583848728).

Almost surely, 2^11940946931 is an apocalyptic number.

11940946931 is a deficient number, since it is larger than the sum of its proper divisors (729842893).

11940946931 is a wasteful number, since it uses less digits than its factorization.

11940946931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524141.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 11940946931 in words is "eleven billion, nine hundred forty million, nine hundred forty-six thousand, nine hundred thirty-one".