23402405111 has 4 divisors (see below), whose sum is σ = 23900328672. Its totient is φ = 22904481552.

The previous prime is 23402405087. The next prime is 23402405141. The reversal of 23402405111 is 11150420432.

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 23402405111 - 2¹⁰ = 23402404087 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 (23402405141) 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, 248961710 + ... + 248961803.

It is an arithmetic number, because the mean of its divisors is an integer number (5975082168).

Almost surely, 2^23402405111 is an apocalyptic number.

23402405111 is a deficient number, since it is larger than the sum of its proper divisors (497923561).

23402405111 is an equidigital number, since it uses as much as digits as its factorization.

23402405111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497923560.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 23402405111 its reverse (11150420432), we get a palindrome (34552825543).

The spelling of 23402405111 in words is "twenty-three billion, four hundred two million, four hundred five thousand, one hundred eleven".