42313023240020 has 72 divisors (see below), whose sum is σ = 101878213490424. Its totient is φ = 14704254210048.

The previous prime is 42313023239987. The next prime is 42313023240023. The reversal of 42313023240020 is 2004232031324.

It can be written as a sum of positive squares in 12 ways, for example, as 25841016560836 + 16472006679184 = 5083406^2 + 4058572^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42313023240023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368138009 + ... + 368252928.

It is an arithmetic number, because the mean of its divisors is an integer number (1414975187367).

Almost surely, 2^{42313023240020} is an apocalyptic number.

It is an amenable number.

42313023240020 is an abundant number, since it is smaller than the sum of its proper divisors (59565190250404).

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

42313023240020 is a wasteful number, since it uses less digits than its factorization.

42313023240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736390989 (or 736390974 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 42313023240020 its reverse (2004232031324), we get a palindrome (44317255271344).

The spelling of 42313023240020 in words is "forty-two trillion, three hundred thirteen billion, twenty-three million, two hundred forty thousand, twenty".