113120021033 has 4 divisors (see below), whose sum is σ = 113273093520. Its totient is φ = 112966948548.

The previous prime is 113120020999. The next prime is 113120021051. The reversal of 113120021033 is 330120021311.

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: 330120021311 = 17 ⋅19418824783.

It is a cyclic number.

It is not a de Polignac number, because 113120021033 - 2¹⁰ = 113120020009 is a prime.

It is a super-2 number, since 2×113120021033² (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 (113120071033) 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, 76535135 + ... + 76536612.

It is an arithmetic number, because the mean of its divisors is an integer number (28318273380).

Almost surely, 2^113120021033 is an apocalyptic number.

It is an amenable number.

113120021033 is a deficient number, since it is larger than the sum of its proper divisors (153072487).

113120021033 is an equidigital number, since it uses as much as digits as its factorization.

113120021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153072486.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 113120021033 its reverse (330120021311), we get a palindrome (443240042344).

The spelling of 113120021033 in words is "one hundred thirteen billion, one hundred twenty million, twenty-one thousand, thirty-three".