940521311 has 12 divisors (see below), whose sum is σ = 1004737320. Its totient is φ = 880202880.

The previous prime is 940521293. The next prime is 940521343. The reversal of 940521311 is 113125049.

It is a de Polignac number, because none of the positive numbers 2^k-940521311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940521391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42641 + ... + 60821.

It is an arithmetic number, because the mean of its divisors is an integer number (83728110).

Almost surely, 2^940521311 is an apocalyptic number.

940521311 is a deficient number, since it is larger than the sum of its proper divisors (64216009).

940521311 is a wasteful number, since it uses less digits than its factorization.

940521311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18394 (or 18377 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 940521311 is about 30667.9199001171. The cubic root of 940521311 is about 979.7671635523.

The spelling of 940521311 in words is "nine hundred forty million, five hundred twenty-one thousand, three hundred eleven".