11970572393523 has 4 divisors (see below), whose sum is σ = 15960763191368. Its totient is φ = 7980381595680.

The previous prime is 11970572393519. The next prime is 11970572393569. The reversal of 11970572393523 is 32539327507911.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11970572393523 - 2² = 11970572393519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11970572393323) 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, 1995095398918 + ... + 1995095398923.

It is an arithmetic number, because the mean of its divisors is an integer number (3990190797842).

Almost surely, 2^{11970572393523} is an apocalyptic number.

11970572393523 is a deficient number, since it is larger than the sum of its proper divisors (3990190797845).

11970572393523 is an equidigital number, since it uses as much as digits as its factorization.

11970572393523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990190797844.

The product of its (nonzero) digits is 10716300, while the sum is 57.

The spelling of 11970572393523 in words is "eleven trillion, nine hundred seventy billion, five hundred seventy-two million, three hundred ninety-three thousand, five hundred twenty-three".