23032002251 has 4 divisors (see below), whose sum is σ = 23033504352. Its totient is φ = 23030500152.

The previous prime is 23032002233. The next prime is 23032002281. The reversal of 23032002251 is 15220023032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23032002251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23032002281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727811 + ... + 758796.

It is an arithmetic number, because the mean of its divisors is an integer number (5758376088).

Almost surely, 2^23032002251 is an apocalyptic number.

23032002251 is a deficient number, since it is larger than the sum of its proper divisors (1502101).

23032002251 is a wasteful number, since it uses less digits than its factorization.

23032002251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502100.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 23032002251 its reverse (15220023032), we get a palindrome (38252025283).

The spelling of 23032002251 in words is "twenty-three billion, thirty-two million, two thousand, two hundred fifty-one".