23354440451 has 4 divisors (see below), whose sum is σ = 23683376304. Its totient is φ = 23025504600.

The previous prime is 23354440433. The next prime is 23354440469. The reversal of 23354440451 is 15404445332.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23354440433) and next prime (23354440469).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23354440451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23354440471) 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, 164467820 + ... + 164467961.

It is an arithmetic number, because the mean of its divisors is an integer number (5920844076).

Almost surely, 2^23354440451 is an apocalyptic number.

23354440451 is a deficient number, since it is larger than the sum of its proper divisors (328935853).

23354440451 is an equidigital number, since it uses as much as digits as its factorization.

23354440451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328935852.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 23354440451 its reverse (15404445332), we get a palindrome (38758885783).

The spelling of 23354440451 in words is "twenty-three billion, three hundred fifty-four million, four hundred forty thousand, four hundred fifty-one".