113840553391 has 4 divisors (see below), whose sum is σ = 113931700000. Its totient is φ = 113749406784.

The previous prime is 113840553361. The next prime is 113840553401. The reversal of 113840553391 is 193355048311.

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 113840553391 - 2⁷ = 113840553263 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 (113840553331) 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, 45571431 + ... + 45573928.

It is an arithmetic number, because the mean of its divisors is an integer number (28482925000).

Almost surely, 2^113840553391 is an apocalyptic number.

113840553391 is a deficient number, since it is larger than the sum of its proper divisors (91146609).

113840553391 is an equidigital number, since it uses as much as digits as its factorization.

113840553391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91146608.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 113840553391 in words is "one hundred thirteen billion, eight hundred forty million, five hundred fifty-three thousand, three hundred ninety-one".