11945560423 has 8 divisors (see below), whose sum is σ = 11965824000. Its totient is φ = 11925313848.

The previous prime is 11945560411. The next prime is 11945560447. The reversal of 11945560423 is 32406554911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11945560423 - 2¹⁷ = 11945429351 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 (11945660423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2486778 + ... + 2491576.

It is an arithmetic number, because the mean of its divisors is an integer number (1495728000).

Almost surely, 2^11945560423 is an apocalyptic number.

11945560423 is a deficient number, since it is larger than the sum of its proper divisors (20263577).

11945560423 is an equidigital number, since it uses as much as digits as its factorization.

11945560423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8501.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 11945560423 in words is "eleven billion, nine hundred forty-five million, five hundred sixty thousand, four hundred twenty-three".