113121013123 has 8 divisors (see below), whose sum is σ = 116591794560. Its totient is φ = 109671992640.

The previous prime is 113121013121. The next prime is 113121013129. The reversal of 113121013123 is 321310121311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113121013123 - 2¹ = 113121013121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113121013123.

It is not an unprimeable number, because it can be changed into a prime (113121013121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5429683 + ... + 5450476.

It is an arithmetic number, because the mean of its divisors is an integer number (14573974320).

Almost surely, 2^113121013123 is an apocalyptic number.

113121013123 is a deficient number, since it is larger than the sum of its proper divisors (3470781437).

113121013123 is a wasteful number, since it uses less digits than its factorization.

113121013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10880477.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 113121013123 its reverse (321310121311), we get a palindrome (434431134434).

The spelling of 113121013123 in words is "one hundred thirteen billion, one hundred twenty-one million, thirteen thousand, one hundred twenty-three".