311352431 has 8 divisors (see below), whose sum is σ = 335882064. Its totient is φ = 286905600.

The previous prime is 311352407. The next prime is 311352451. The reversal of 311352431 is 134253113.

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 311352431 - 2⁶ = 311352367 is a prime.

It is a super-2 number, since 2×311352431² = 193880672579219522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311352397 and 311352406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311352451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12770 + ... + 28031.

It is an arithmetic number, because the mean of its divisors is an integer number (41985258).

Almost surely, 2^311352431 is an apocalyptic number.

311352431 is a deficient number, since it is larger than the sum of its proper divisors (24529633).

311352431 is a wasteful number, since it uses less digits than its factorization.

311352431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41401.

The product of its digits is 1080, while the sum is 23.

The square root of 311352431 is about 17645.1815235775. The cubic root of 311352431 is about 677.7727235422.

The spelling of 311352431 in words is "three hundred eleven million, three hundred fifty-two thousand, four hundred thirty-one".