12120113101 has 4 divisors (see below), whose sum is σ = 12121587100. Its totient is φ = 12118639104.

The previous prime is 12120113099. The next prime is 12120113141. The reversal of 12120113101 is 10131102121.

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 10696937476 + 1423175625 = 103426^2 + 37725^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120113101 - 2¹ = 12120113099 is a prime.

It is a super-4 number, since 4×12120113101⁴ (a number of 41 digits) contains 4444 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 (12120113141) 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, 724596 + ... + 741133.

It is an arithmetic number, because the mean of its divisors is an integer number (3030396775).

Almost surely, 2^12120113101 is an apocalyptic number.

It is an amenable number.

12120113101 is a deficient number, since it is larger than the sum of its proper divisors (1473999).

12120113101 is an equidigital number, since it uses as much as digits as its factorization.

12120113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473998.

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

Adding to 12120113101 its reverse (10131102121), we get a palindrome (22251215222).

The spelling of 12120113101 in words is "twelve billion, one hundred twenty million, one hundred thirteen thousand, one hundred one".