113231120177 has 4 divisors (see below), whose sum is σ = 129406994496. Its totient is φ = 97055245860.

The previous prime is 113231120161. The next prime is 113231120207. The reversal of 113231120177 is 771021132311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 771021132311 = 41 ⋅18805393471.

It is a cyclic number.

It is not a de Polignac number, because 113231120177 - 2⁴ = 113231120161 is a prime.

It is a super-2 number, since 2×113231120177² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113231123177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8087937149 + ... + 8087937162.

It is an arithmetic number, because the mean of its divisors is an integer number (32351748624).

Almost surely, 2^113231120177 is an apocalyptic number.

It is an amenable number.

113231120177 is a deficient number, since it is larger than the sum of its proper divisors (16175874319).

113231120177 is an equidigital number, since it uses as much as digits as its factorization.

113231120177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16175874318.

The product of its (nonzero) digits is 1764, while the sum is 29.

Adding to 113231120177 its reverse (771021132311), we get a palindrome (884252252488).

The spelling of 113231120177 in words is "one hundred thirteen billion, two hundred thirty-one million, one hundred twenty thousand, one hundred seventy-seven".