23152778403 has 4 divisors (see below), whose sum is σ = 30870371208. Its totient is φ = 15435185600.

The previous prime is 23152778393. The next prime is 23152778413. The reversal of 23152778403 is 30487725132.

It is a happy number.

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 (23152778393) and next prime (23152778413).

It is a cyclic number.

It is not a de Polignac number, because 23152778403 - 2⁴ = 23152778387 is a prime.

It is a super-2 number, since 2×23152778403² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23152778413) 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, 3858796398 + ... + 3858796403.

It is an arithmetic number, because the mean of its divisors is an integer number (7717592802).

Almost surely, 2^23152778403 is an apocalyptic number.

23152778403 is a deficient number, since it is larger than the sum of its proper divisors (7717592805).

23152778403 is an equidigital number, since it uses as much as digits as its factorization.

23152778403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7717592804.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 23152778403 in words is "twenty-three billion, one hundred fifty-two million, seven hundred seventy-eight thousand, four hundred three".