113231401391 has 4 divisors (see below), whose sum is σ = 115640580192. Its totient is φ = 110822222592.

The previous prime is 113231401331. The next prime is 113231401403. The reversal of 113231401391 is 193104132311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193104132311 = 37 ⋅5219030603.

It is a cyclic number.

It is not a de Polignac number, because 113231401391 - 2³⁰ = 112157659567 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 (113231401331) 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, 1204589330 + ... + 1204589423.

It is an arithmetic number, because the mean of its divisors is an integer number (28910145048).

Almost surely, 2^113231401391 is an apocalyptic number.

113231401391 is a deficient number, since it is larger than the sum of its proper divisors (2409178801).

113231401391 is an equidigital number, since it uses as much as digits as its factorization.

113231401391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409178800.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 113231401391 in words is "one hundred thirteen billion, two hundred thirty-one million, four hundred one thousand, three hundred ninety-one".