311690338993 has 8 divisors (see below), whose sum is σ = 340260828480. Its totient is φ = 283159016880.

The previous prime is 311690338979. The next prime is 311690339017. The reversal of 311690338993 is 399833096113.

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

It is a cyclic number.

It is not a de Polignac number, because 311690338993 - 2²¹ = 311688241841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311690338903) 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, 9775198 + ... + 9807031.

It is an arithmetic number, because the mean of its divisors is an integer number (42532603560).

Almost surely, 2^311690338993 is an apocalyptic number.

It is an amenable number.

311690338993 is a deficient number, since it is larger than the sum of its proper divisors (28570489487).

311690338993 is a wasteful number, since it uses less digits than its factorization.

311690338993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19583687.

The product of its (nonzero) digits is 2834352, while the sum is 55.

The spelling of 311690338993 in words is "three hundred eleven billion, six hundred ninety million, three hundred thirty-eight thousand, nine hundred ninety-three".