313444330240402 has 4 divisors (see below), whose sum is σ = 470166495360606. Its totient is φ = 156722165120200.

The previous prime is 313444330240309. The next prime is 313444330240411. The reversal of 313444330240402 is 204042033444313.

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., 208132587093601 + 105311743146801 = 14426801^2 + 10262151^2 .

It is a super-2 number, since 2×313444330240402² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78361082560099 + ... + 78361082560102.

Almost surely, 2^{313444330240402} is an apocalyptic number.

313444330240402 is a deficient number, since it is larger than the sum of its proper divisors (156722165120204).

313444330240402 is a wasteful number, since it uses less digits than its factorization.

313444330240402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156722165120203.

The product of its (nonzero) digits is 331776, while the sum is 37.

Adding to 313444330240402 its reverse (204042033444313), we get a palindrome (517486363684715).

The spelling of 313444330240402 in words is "three hundred thirteen trillion, four hundred forty-four billion, three hundred thirty million, two hundred forty thousand, four hundred two".