23020645431 has 8 divisors (see below), whose sum is σ = 35079078784. Its totient is φ = 13154654520.

The previous prime is 23020645343. The next prime is 23020645451. The reversal of 23020645431 is 13454602032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23020645431 - 2¹³ = 23020637239 is a prime.

It is a super-2 number, since 2×23020645431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020645451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548110585 + ... + 548110626.

It is an arithmetic number, because the mean of its divisors is an integer number (4384884848).

Almost surely, 2^23020645431 is an apocalyptic number.

23020645431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23020645431 is a deficient number, since it is larger than the sum of its proper divisors (12058433353).

23020645431 is a wasteful number, since it uses less digits than its factorization.

23020645431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096221221.

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 23020645431 in words is "twenty-three billion, twenty million, six hundred forty-five thousand, four hundred thirty-one".