311431053 has 16 divisors (see below), whose sum is σ = 429203456. Its totient is φ = 200657520.

The previous prime is 311431037. The next prime is 311431091. The reversal of 311431053 is 350134113.

It is not a de Polignac number, because 311431053 - 2⁴ = 311431037 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 (311431093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88200 + ... + 91662.

It is an arithmetic number, because the mean of its divisors is an integer number (26825216).

Almost surely, 2^311431053 is an apocalyptic number.

It is an amenable number.

311431053 is a deficient number, since it is larger than the sum of its proper divisors (117772403).

311431053 is a wasteful number, since it uses less digits than its factorization.

311431053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 311431053 is about 17647.4092432855. The cubic root of 311431053 is about 677.8297686108.

Adding to 311431053 its reverse (350134113), we get a palindrome (661565166).

The spelling of 311431053 in words is "three hundred eleven million, four hundred thirty-one thousand, fifty-three".