23420422152511 has 4 divisors (see below), whose sum is σ = 23422897632024. Its totient is φ = 23417946673000.

The previous prime is 23420422152493. The next prime is 23420422152527. The reversal of 23420422152511 is 11525122402432.

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 23420422152511 - 2⁷ = 23420422152383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420422152571) 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, 1237725565 + ... + 1237744486.

It is an arithmetic number, because the mean of its divisors is an integer number (5855724408006).

Almost surely, 2^{23420422152511} is an apocalyptic number.

23420422152511 is a deficient number, since it is larger than the sum of its proper divisors (2475479513).

23420422152511 is an equidigital number, since it uses as much as digits as its factorization.

23420422152511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475479512.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 23420422152511 its reverse (11525122402432), we get a palindrome (34945544554943).

The spelling of 23420422152511 in words is "twenty-three trillion, four hundred twenty billion, four hundred twenty-two million, one hundred fifty-two thousand, five hundred eleven".