20442332023013 has 4 divisors (see below), whose sum is σ = 20442345810528. Its totient is φ = 20442318235500.

The previous prime is 20442332022979. The next prime is 20442332023019. The reversal of 20442332023013 is 31032023324402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20442332023013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442332023019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4359113 + ... + 7738638.

It is an arithmetic number, because the mean of its divisors is an integer number (5110586452632).

Almost surely, 2^{20442332023013} is an apocalyptic number.

It is an amenable number.

20442332023013 is a deficient number, since it is larger than the sum of its proper divisors (13787515).

20442332023013 is a wasteful number, since it uses less digits than its factorization.

20442332023013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13787514.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 20442332023013 its reverse (31032023324402), we get a palindrome (51474355347415).

The spelling of 20442332023013 in words is "twenty trillion, four hundred forty-two billion, three hundred thirty-two million, twenty-three thousand, thirteen".