23540254431 has 8 divisors (see below), whose sum is σ = 31419467904. Its totient is φ = 15677271960.

The previous prime is 23540254403. The next prime is 23540254453. The reversal of 23540254431 is 13445204532.

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

It is not a de Polignac number, because 23540254431 - 2³¹ = 21392770783 is a prime.

It is a super-2 number, since 2×23540254431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23540254392 and 23540254401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23540254531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4054365 + ... + 4060166.

It is an arithmetic number, because the mean of its divisors is an integer number (3927433488).

Almost surely, 2^23540254431 is an apocalyptic number.

23540254431 is a deficient number, since it is larger than the sum of its proper divisors (7879213473).

23540254431 is an equidigital number, since it uses as much as digits as its factorization.

23540254431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8115501.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 23540254431 its reverse (13445204532), we get a palindrome (36985458963).

The spelling of 23540254431 in words is "twenty-three billion, five hundred forty million, two hundred fifty-four thousand, four hundred thirty-one".