113120100021 has 8 divisors (see below), whose sum is σ = 150895273120. Its totient is φ = 75379163472.

The previous prime is 113120100019. The next prime is 113120100053. The reversal of 113120100021 is 120001021311.

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

It is not a de Polignac number, because 113120100021 - 2¹ = 113120100019 is a prime.

It is a super-2 number, since 2×113120100021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113120100521) 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, 8551426 + ... + 8564643.

It is an arithmetic number, because the mean of its divisors is an integer number (18861909140).

Almost surely, 2^113120100021 is an apocalyptic number.

It is an amenable number.

113120100021 is a deficient number, since it is larger than the sum of its proper divisors (37775173099).

113120100021 is a wasteful number, since it uses less digits than its factorization.

113120100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17118275.

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

Adding to 113120100021 its reverse (120001021311), we get a palindrome (233121121332).

The spelling of 113120100021 in words is "one hundred thirteen billion, one hundred twenty million, one hundred thousand, twenty-one".