11897120432 has 10 divisors (see below), whose sum is σ = 23050670868. Its totient is φ = 5948560208.

The previous prime is 11897120381. The next prime is 11897120471. The reversal of 11897120432 is 23402179811.

It is a happy number.

11897120432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371784998 + ... + 371785029.

Almost surely, 2^11897120432 is an apocalyptic number.

It is an amenable number.

11897120432 is a deficient number, since it is larger than the sum of its proper divisors (11153550436).

11897120432 is an equidigital number, since it uses as much as digits as its factorization.

11897120432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743570035 (or 743570029 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 11897120432 in words is "eleven billion, eight hundred ninety-seven million, one hundred twenty thousand, four hundred thirty-two".