313231401043 has 4 divisors (see below), whose sum is σ = 341706982968. Its totient is φ = 284755819120.

The previous prime is 313231401001. The next prime is 313231401083. The reversal of 313231401043 is 340104132313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313231401043 is a prime.

It is a super-2 number, since 2×313231401043² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313231400999 and 313231401017.

It is not an unprimeable number, because it can be changed into a prime (313231401083) 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, 14237790946 + ... + 14237790967.

It is an arithmetic number, because the mean of its divisors is an integer number (85426745742).

Almost surely, 2^313231401043 is an apocalyptic number.

313231401043 is a deficient number, since it is larger than the sum of its proper divisors (28475581925).

313231401043 is a wasteful number, since it uses less digits than its factorization.

313231401043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28475581924.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 313231401043 its reverse (340104132313), we get a palindrome (653335533356).

The spelling of 313231401043 in words is "three hundred thirteen billion, two hundred thirty-one million, four hundred one thousand, forty-three".