313434431 has 4 divisors (see below), whose sum is σ = 329931000. Its totient is φ = 296937864.

The previous prime is 313434427. The next prime is 313434449. The reversal of 313434431 is 134434313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313434431 - 2² = 313434427 is a prime.

It is a super-2 number, since 2×313434431² = 196482285072587522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313434431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313434931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8248256 + ... + 8248293.

It is an arithmetic number, because the mean of its divisors is an integer number (82482750).

Almost surely, 2^313434431 is an apocalyptic number.

313434431 is a deficient number, since it is larger than the sum of its proper divisors (16496569).

313434431 is a wasteful number, since it uses less digits than its factorization.

313434431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16496568.

The product of its digits is 5184, while the sum is 26.

The square root of 313434431 is about 17704.0795016290. The cubic root of 313434431 is about 679.2801140225.

Adding to 313434431 its reverse (134434313), we get a palindrome (447868744).

The spelling of 313434431 in words is "three hundred thirteen million, four hundred thirty-four thousand, four hundred thirty-one".