311942219135 has 4 divisors (see below), whose sum is σ = 374330662968. Its totient is φ = 249553775304.

The previous prime is 311942219129. The next prime is 311942219167. The reversal of 311942219135 is 531912249113.

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

It is a cyclic number.

It is not a de Polignac number, because 311942219135 - 2²⁶ = 311875110271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311942219092 and 311942219101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31194221909 + ... + 31194221918.

It is an arithmetic number, because the mean of its divisors is an integer number (93582665742).

Almost surely, 2^311942219135 is an apocalyptic number.

311942219135 is a deficient number, since it is larger than the sum of its proper divisors (62388443833).

311942219135 is an equidigital number, since it uses as much as digits as its factorization.

311942219135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62388443832.

The product of its digits is 58320, while the sum is 41.

The spelling of 311942219135 in words is "three hundred eleven billion, nine hundred forty-two million, two hundred nineteen thousand, one hundred thirty-five".