311142543355 has 32 divisors (see below), whose sum is σ = 430587477504. Its totient is φ = 211416930816.

The previous prime is 311142543277. The next prime is 311142543377. The reversal of 311142543355 is 553345241113.

It is not a de Polignac number, because 311142543355 - 2¹⁷ = 311142412283 is a prime.

It is a Duffinian 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, 25950672 + ... + 25962658.

It is an arithmetic number, because the mean of its divisors is an integer number (13455858672).

Almost surely, 2^311142543355 is an apocalyptic number.

311142543355 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

311142543355 is a deficient number, since it is larger than the sum of its proper divisors (119444934149).

311142543355 is a wasteful number, since it uses less digits than its factorization.

311142543355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18675.

The product of its digits is 108000, while the sum is 37.

Adding to 311142543355 its reverse (553345241113), we get a palindrome (864487784468).

The spelling of 311142543355 in words is "three hundred eleven billion, one hundred forty-two million, five hundred forty-three thousand, three hundred fifty-five".