311440031201399 has 4 divisors (see below), whose sum is σ = 311440105257840. Its totient is φ = 311439957144960.

The previous prime is 311440031201371. The next prime is 311440031201441. The reversal of 311440031201399 is 993102130044113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311440031201399 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 (311440031201339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30314267 + ... + 39266204.

It is an arithmetic number, because the mean of its divisors is an integer number (77860026314460).

Almost surely, 2^{311440031201399} is an apocalyptic number.

311440031201399 is a deficient number, since it is larger than the sum of its proper divisors (74056441).

311440031201399 is an equidigital number, since it uses as much as digits as its factorization.

311440031201399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74056440.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 311440031201399 in words is "three hundred eleven trillion, four hundred forty billion, thirty-one million, two hundred one thousand, three hundred ninety-nine".