113220097 has 4 divisors (see below), whose sum is σ = 113310036. Its totient is φ = 113130160.

The previous prime is 113220077. The next prime is 113220101. The reversal of 113220097 is 790022311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790022311 = 13 ⋅60770947.

It can be written as a sum of positive squares in 2 ways, for example, as 25441936 + 87778161 = 5044^2 + 9369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113220097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113220067) 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, 43054 + ... + 45607.

It is an arithmetic number, because the mean of its divisors is an integer number (28327509).

Almost surely, 2^113220097 is an apocalyptic number.

It is an amenable number.

113220097 is a deficient number, since it is larger than the sum of its proper divisors (89939).

113220097 is an equidigital number, since it uses as much as digits as its factorization.

113220097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89938.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 113220097 is about 10640.4932686413. The cubic root of 113220097 is about 483.7724965557.

The spelling of 113220097 in words is "one hundred thirteen million, two hundred twenty thousand, ninety-seven".