113023212020 has 12 divisors (see below), whose sum is σ = 237348745284. Its totient is φ = 45209284800.

The previous prime is 113023212019. The next prime is 113023212023. The reversal of 113023212020 is 20212320311.

It can be written as a sum of positive squares in 2 ways, for example, as 30735699856 + 82287512164 = 175316^2 + 286858^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 113023212020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113023212023) 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, 2825580281 + ... + 2825580320.

It is an arithmetic number, because the mean of its divisors is an integer number (19779062107).

Almost surely, 2^113023212020 is an apocalyptic number.

113023212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113023212020 is an abundant number, since it is smaller than the sum of its proper divisors (124325533264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113023212020 is a wasteful number, since it uses less digits than its factorization.

113023212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5651160610 (or 5651160608 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 113023212020 its reverse (20212320311), we get a palindrome (133235532331).

The spelling of 113023212020 in words is "one hundred thirteen billion, twenty-three million, two hundred twelve thousand, twenty".