20232145331 has 4 divisors (see below), whose sum is σ = 20243768064. Its totient is φ = 20220522600.

The previous prime is 20232145291. The next prime is 20232145361. The reversal of 20232145331 is 13354123202.

It is a happy number.

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 20232145331 - 2²⁶ = 20165036467 is a prime.

It is a super-2 number, since 2×20232145331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20232145331.

It is not an unprimeable number, because it can be changed into a prime (20232145361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5808755 + ... + 5812236.

It is an arithmetic number, because the mean of its divisors is an integer number (5060942016).

Almost surely, 2^20232145331 is an apocalyptic number.

20232145331 is a deficient number, since it is larger than the sum of its proper divisors (11622733).

20232145331 is a wasteful number, since it uses less digits than its factorization.

20232145331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11622732.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20232145331 its reverse (13354123202), we get a palindrome (33586268533).

The spelling of 20232145331 in words is "twenty billion, two hundred thirty-two million, one hundred forty-five thousand, three hundred thirty-one".