311341431 has 8 divisors (see below), whose sum is σ = 419001984. Its totient is φ = 205620920.

The previous prime is 311341427. The next prime is 311341453. The reversal of 311341431 is 134143113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311341431 - 2² = 311341427 is a prime.

It is a super-2 number, since 2×311341431² = 193866973314255522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311341398 and 311341407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311341031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484635 + ... + 485276.

It is an arithmetic number, because the mean of its divisors is an integer number (52375248).

Almost surely, 2^311341431 is an apocalyptic number.

311341431 is a deficient number, since it is larger than the sum of its proper divisors (107660553).

311341431 is a wasteful number, since it uses less digits than its factorization.

311341431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970021.

The product of its digits is 432, while the sum is 21.

The square root of 311341431 is about 17644.8698209990. The cubic root of 311341431 is about 677.7647416038.

Adding to 311341431 its reverse (134143113), we get a palindrome (445484544).

It can be divided in two parts, 3113 and 41431, that added together give a palindrome (44544).

The spelling of 311341431 in words is "three hundred eleven million, three hundred forty-one thousand, four hundred thirty-one".