313431212434 has 4 divisors (see below), whose sum is σ = 470146818654. Its totient is φ = 156715606216.

The previous prime is 313431212377. The next prime is 313431212441. The reversal of 313431212434 is 434212134313.

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

It can be written as a sum of positive squares in only one way, i.e., 312945142225 + 486070209 = 559415^2 + 22047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 313431212396 and 313431212405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78357803107 + ... + 78357803110.

Almost surely, 2^313431212434 is an apocalyptic number.

313431212434 is a deficient number, since it is larger than the sum of its proper divisors (156715606220).

313431212434 is a wasteful number, since it uses less digits than its factorization.

313431212434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156715606219.

The product of its digits is 20736, while the sum is 31.

Adding to 313431212434 its reverse (434212134313), we get a palindrome (747643346747).

The spelling of 313431212434 in words is "three hundred thirteen billion, four hundred thirty-one million, two hundred twelve thousand, four hundred thirty-four".