313444131403 has 16 divisors (see below), whose sum is σ = 349769097216. Its totient is φ = 278934988320.

The previous prime is 313444131391. The next prime is 313444131409. The reversal of 313444131403 is 304131444313.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313444131403 is a prime.

It is a super-2 number, since 2×313444131403² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313444131409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1372675 + ... + 1584652.

It is an arithmetic number, because the mean of its divisors is an integer number (21860568576).

Almost surely, 2^313444131403 is an apocalyptic number.

313444131403 is a deficient number, since it is larger than the sum of its proper divisors (36324965813).

313444131403 is a wasteful number, since it uses less digits than its factorization.

313444131403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957634.

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

Adding to 313444131403 its reverse (304131444313), we get a palindrome (617575575716).

The spelling of 313444131403 in words is "three hundred thirteen billion, four hundred forty-four million, one hundred thirty-one thousand, four hundred three".