113012101021 has 4 divisors (see below), whose sum is σ = 113021220700. Its totient is φ = 113002981344.

The previous prime is 113012101009. The next prime is 113012101049. The reversal of 113012101021 is 120101210311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17846020921 + 95166080100 = 133589^2 + 308490^2 .

It is a cyclic number.

It is not a de Polignac number, because 113012101021 - 2¹³ = 113012092829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113012100992 and 113012101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113012101621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4541226 + ... + 4566043.

It is an arithmetic number, because the mean of its divisors is an integer number (28255305175).

Almost surely, 2^113012101021 is an apocalyptic number.

It is an amenable number.

113012101021 is a deficient number, since it is larger than the sum of its proper divisors (9119679).

113012101021 is an equidigital number, since it uses as much as digits as its factorization.

113012101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9119678.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 113012101021 its reverse (120101210311), we get a palindrome (233113311332).

The spelling of 113012101021 in words is "one hundred thirteen billion, twelve million, one hundred one thousand, twenty-one".