2023731881 has 4 divisors (see below), whose sum is σ = 2023834512. Its totient is φ = 2023629252.

The previous prime is 2023731877. The next prime is 2023731883. The reversal of 2023731881 is 1881373202.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2023731881 - 2² = 2023731877 is a prime.

It is a super-2 number, since 2×2023731881² = 8190981452351596322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023731883) 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, 11375 + ... + 64628.

It is an arithmetic number, because the mean of its divisors is an integer number (505958628).

Almost surely, 2^2023731881 is an apocalyptic number.

It is an amenable number.

2023731881 is a deficient number, since it is larger than the sum of its proper divisors (102631).

2023731881 is an equidigital number, since it uses as much as digits as its factorization.

2023731881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102630.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 2023731881 is about 44985.9075822640. The cubic root of 2023731881 is about 1264.8848507100.

The spelling of 2023731881 in words is "two billion, twenty-three million, seven hundred thirty-one thousand, eight hundred eighty-one".