11780522423 has 4 divisors (see below), whose sum is σ = 11929643040. Its totient is φ = 11631401808.

The previous prime is 11780522407. The next prime is 11780522437. The reversal of 11780522423 is 32422508711.

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 11780522423 - 2⁴ = 11780522407 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 (11780522723) 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, 74560190 + ... + 74560347.

It is an arithmetic number, because the mean of its divisors is an integer number (2982410760).

Almost surely, 2^11780522423 is an apocalyptic number.

11780522423 is a deficient number, since it is larger than the sum of its proper divisors (149120617).

11780522423 is an equidigital number, since it uses as much as digits as its factorization.

11780522423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149120616.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 11780522423 in words is "eleven billion, seven hundred eighty million, five hundred twenty-two thousand, four hundred twenty-three".