23203504451 has 2 divisors, whose sum is σ = 23203504452. Its totient is φ = 23203504450.

The previous prime is 23203504427. The next prime is 23203504523. The reversal of 23203504451 is 15440530232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23203504451 - 2¹⁴ = 23203488067 is a prime.

It is a super-2 number, since 2×23203504451² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23203504421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601752225 + 11601752226.

It is an arithmetic number, because the mean of its divisors is an integer number (11601752226).

Almost surely, 2^23203504451 is an apocalyptic number.

23203504451 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203504451 is an equidigital number, since it uses as much as digits as its factorization.

23203504451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 23203504451 in words is "twenty-three billion, two hundred three million, five hundred four thousand, four hundred fifty-one".