311431324201302 has 64 divisors (see below), whose sum is σ = 639739660944384. Its totient is φ = 101016052210080.

The previous prime is 311431324201301. The next prime is 311431324201397. The reversal of 311431324201302 is 203102423134113.

It is a self number, because there is not a number n which added to its sum of digits gives 311431324201302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311431324201301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159580677 + ... + 161520447.

It is an arithmetic number, because the mean of its divisors is an integer number (9995932202256).

Almost surely, 2^{311431324201302} is an apocalyptic number.

311431324201302 is an abundant number, since it is smaller than the sum of its proper divisors (328308336743082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311431324201302 is a wasteful number, since it uses less digits than its factorization.

311431324201302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942153.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 311431324201302 its reverse (203102423134113), we get a palindrome (514533747335415).

The spelling of 311431324201302 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred twenty-four million, two hundred one thousand, three hundred two".