23251342403 has 4 divisors (see below), whose sum is σ = 23252646720. Its totient is φ = 23250038088.

The previous prime is 23251342343. The next prime is 23251342409. The reversal of 23251342403 is 30424315232.

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 23251342403 - 2¹² = 23251338307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23251342409) 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 3 ways as a sum of consecutive naturals, for example, 625043 + ... + 661196.

It is an arithmetic number, because the mean of its divisors is an integer number (5813161680).

Almost surely, 2^23251342403 is an apocalyptic number.

23251342403 is a deficient number, since it is larger than the sum of its proper divisors (1304317).

23251342403 is a wasteful number, since it uses less digits than its factorization.

23251342403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304316.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 23251342403 its reverse (30424315232), we get a palindrome (53675657635).

The spelling of 23251342403 in words is "twenty-three billion, two hundred fifty-one million, three hundred forty-two thousand, four hundred three".