20232012281 has 12 divisors (see below), whose sum is σ = 21934807488. Its totient is φ = 18652883184.

The previous prime is 20232012271. The next prime is 20232012287. The reversal of 20232012281 is 18221023202.

It is not a de Polignac number, because 20232012281 - 2¹⁰ = 20232011257 is a prime.

It is a super-2 number, since 2×20232012281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20232012287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66356 + ... + 211818.

It is an arithmetic number, because the mean of its divisors is an integer number (1827900624).

Almost surely, 2^20232012281 is an apocalyptic number.

It is an amenable number.

20232012281 is a deficient number, since it is larger than the sum of its proper divisors (1702795207).

20232012281 is a wasteful number, since it uses less digits than its factorization.

20232012281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146312 (or 146299 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 20232012281 its reverse (18221023202), we get a palindrome (38453035483).

The spelling of 20232012281 in words is "twenty billion, two hundred thirty-two million, twelve thousand, two hundred eighty-one".