20023500891883 has 4 divisors (see below), whose sum is σ = 20023563385800. Its totient is φ = 20023438397968.

The previous prime is 20023500891811. The next prime is 20023500891899. The reversal of 20023500891883 is 38819800532002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20023500891883 - 2¹³ = 20023500883691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023500891683) 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, 30763858 + ... + 31407991.

It is an arithmetic number, because the mean of its divisors is an integer number (5005890846450).

Almost surely, 2^{20023500891883} is an apocalyptic number.

20023500891883 is a deficient number, since it is larger than the sum of its proper divisors (62493917).

20023500891883 is an equidigital number, since it uses as much as digits as its factorization.

20023500891883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62493916.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 20023500891883 in words is "twenty trillion, twenty-three billion, five hundred million, eight hundred ninety-one thousand, eight hundred eighty-three".