311204342242020 has 96 divisors (see below), whose sum is σ = 909318368754432. Its totient is φ = 79374379667968.

The previous prime is 311204342242019. The next prime is 311204342242039. The reversal of 311204342242020 is 20242243402113.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13282594 + ... + 28263686.

It is an arithmetic number, because the mean of its divisors is an integer number (9472066341192).

Almost surely, 2^{311204342242020} is an apocalyptic number.

311204342242020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311204342242020 is an abundant number, since it is smaller than the sum of its proper divisors (598114026512412).

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

311204342242020 is a wasteful number, since it uses less digits than its factorization.

311204342242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14996181 (or 14996179 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 311204342242020 its reverse (20242243402113), we get a palindrome (331446585644133).

The spelling of 311204342242020 in words is "three hundred eleven trillion, two hundred four billion, three hundred forty-two million, two hundred forty-two thousand, twenty".