113155123 has 2 divisors, whose sum is σ = 113155124. Its totient is φ = 113155122.

The previous prime is 113155109. The next prime is 113155151. The reversal of 113155123 is 321551311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113155123 - 2⁹ = 113154611 is a prime.

It is a super-2 number, since 2×113155123² = 25608163722290258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113155094 and 113155103.

It is not a weakly prime, because it can be changed into another prime (113150123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56577561 + 56577562.

It is an arithmetic number, because the mean of its divisors is an integer number (56577562).

Almost surely, 2^113155123 is an apocalyptic number.

113155123 is a deficient number, since it is larger than the sum of its proper divisors (1).

113155123 is an equidigital number, since it uses as much as digits as its factorization.

113155123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450, while the sum is 22.

The square root of 113155123 is about 10637.4396825552. The cubic root of 113155123 is about 483.6799374614.

It can be divided in two parts, 113 and 155123, that added together give a square (155236 = 394²).

The spelling of 113155123 in words is "one hundred thirteen million, one hundred fifty-five thousand, one hundred twenty-three".