113231022122 has 4 divisors (see below), whose sum is σ = 169846533186. Its totient is φ = 56615511060.

The previous prime is 113231022067. The next prime is 113231022133. The reversal of 113231022122 is 221220132311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221220132311 = 28901 ⋅7654411.

It can be written as a sum of positive squares in only one way, i.e., 91089879721 + 22141142401 = 301811^2 + 148799^2 .

It is a junction number, because it is equal to n+sod(n) for n = 113231022094 and 113231022103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28307755529 + ... + 28307755532.

Almost surely, 2^113231022122 is an apocalyptic number.

113231022122 is a deficient number, since it is larger than the sum of its proper divisors (56615511064).

113231022122 is an equidigital number, since it uses as much as digits as its factorization.

113231022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56615511063.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 113231022122 its reverse (221220132311), we get a palindrome (334451154433).

The spelling of 113231022122 in words is "one hundred thirteen billion, two hundred thirty-one million, twenty-two thousand, one hundred twenty-two".