311430023241402 has 32 divisors (see below), whose sum is σ = 671053840466688. Its totient is φ = 95784410719296.

The previous prime is 311430023241397. The next prime is 311430023241427. The reversal of 311430023241402 is 204142320034113.

It is a super-2 number, since 2×311430023241402² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311430023241402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837559113 + ... + 837930860.

It is an arithmetic number, because the mean of its divisors is an integer number (20970432514584).

Almost surely, 2^{311430023241402} is an apocalyptic number.

311430023241402 is an abundant number, since it is smaller than the sum of its proper divisors (359623817225286).

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

311430023241402 is a wasteful number, since it uses less digits than its factorization.

311430023241402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675492374.

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

Adding to 311430023241402 its reverse (204142320034113), we get a palindrome (515572343275515).

The spelling of 311430023241402 in words is "three hundred eleven trillion, four hundred thirty billion, twenty-three million, two hundred forty-one thousand, four hundred two".