311430224031402 has 32 divisors (see below), whose sum is σ = 714610319536512. Its totient is φ = 88633838075904.

The previous prime is 311430224031389. The next prime is 311430224031457. The reversal of 311430224031402 is 204130422034113.

It is a self number, because there is not a number n which added to its sum of digits gives 311430224031402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14426069623 + ... + 14426091210.

It is an arithmetic number, because the mean of its divisors is an integer number (22331572485516).

Almost surely, 2^{311430224031402} is an apocalyptic number.

311430224031402 is an abundant number, since it is smaller than the sum of its proper divisors (403180095505110).

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

311430224031402 is a wasteful number, since it uses less digits than its factorization.

311430224031402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28852161102.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 311430224031402 its reverse (204130422034113), we get a palindrome (515560646065515).

The spelling of 311430224031402 in words is "three hundred eleven trillion, four hundred thirty billion, two hundred twenty-four million, thirty-one thousand, four hundred two".