20312242344 has 80 divisors (see below), whose sum is σ = 58728405120. Its totient is φ = 6552329760.

The previous prime is 20312242337. The next prime is 20312242367. The reversal of 20312242344 is 44324221302.

20312242344 is a `hidden beast` number, since 2 + 0 + 312 + 2 + 4 + 2 + 344 = 666.

It is a super-2 number, since 2×20312242344² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 485494 + ... + 525669.

It is an arithmetic number, because the mean of its divisors is an integer number (734105064).

Almost surely, 2^20312242344 is an apocalyptic number.

20312242344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20312242344 is an abundant number, since it is smaller than the sum of its proper divisors (38416162776).

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

20312242344 is a wasteful number, since it uses less digits than its factorization.

20312242344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011212 (or 1011199 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20312242344 its reverse (44324221302), we get a palindrome (64636463646).

The spelling of 20312242344 in words is "twenty billion, three hundred twelve million, two hundred forty-two thousand, three hundred forty-four".