311440042023422 has 64 divisors (see below), whose sum is σ = 546687829195200. Its totient is φ = 131773063956480.

The previous prime is 311440042023403. The next prime is 311440042023437. The reversal of 311440042023422 is 224320240044113.

It is a happy number.

It is a super-2 number, since 2×311440042023422² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51940229 + ... + 57625232.

It is an arithmetic number, because the mean of its divisors is an integer number (8541997331175).

Almost surely, 2^{311440042023422} is an apocalyptic number.

311440042023422 is a deficient number, since it is larger than the sum of its proper divisors (235247787171778).

311440042023422 is a wasteful number, since it uses less digits than its factorization.

311440042023422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109565661.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 311440042023422 its reverse (224320240044113), we get a palindrome (535760282067535).

The spelling of 311440042023422 in words is "three hundred eleven trillion, four hundred forty billion, forty-two million, twenty-three thousand, four hundred twenty-two".