311145314475 has 24 divisors (see below), whose sum is σ = 532165782960. Its totient is φ = 160221953920.

The previous prime is 311145314461. The next prime is 311145314489. The reversal of 311145314475 is 574413541113.

It is an interprime number because it is at equal distance from previous prime (311145314461) and next prime (311145314489).

It is not a de Polignac number, because 311145314475 - 2⁵ = 311145314443 is a prime.

It is a super-2 number, since 2×311145314475² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71525484 + ... + 71529833.

It is an arithmetic number, because the mean of its divisors is an integer number (22173574290).

Almost surely, 2^311145314475 is an apocalyptic number.

311145314475 is a deficient number, since it is larger than the sum of its proper divisors (221020468485).

311145314475 is a wasteful number, since it uses less digits than its factorization.

311145314475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143055359 (or 143055354 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

Adding to 311145314475 its reverse (574413541113), we get a palindrome (885558855588).

The spelling of 311145314475 in words is "three hundred eleven billion, one hundred forty-five million, three hundred fourteen thousand, four hundred seventy-five".