120011213023021 has 4 divisors (see below), whose sum is σ = 124149530713500. Its totient is φ = 115872895332544.

The previous prime is 120011213022973. The next prime is 120011213023027. The reversal of 120011213023021 is 120320312110021.

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 46203096965796 + 73808116057225 = 6797286^2 + 8591165^2 .

It is a cyclic number.

It is not a de Polignac number, because 120011213023021 - 2³¹ = 120009065539373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120011213023021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011213023027) 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, 2069158845196 + ... + 2069158845253.

It is an arithmetic number, because the mean of its divisors is an integer number (31037382678375).

Almost surely, 2^{120011213023021} is an apocalyptic number.

It is an amenable number.

120011213023021 is a deficient number, since it is larger than the sum of its proper divisors (4138317690479).

120011213023021 is an equidigital number, since it uses as much as digits as its factorization.

120011213023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138317690478.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 120011213023021 its reverse (120320312110021), we get a palindrome (240331525133042).

The spelling of 120011213023021 in words is "one hundred twenty trillion, eleven billion, two hundred thirteen million, twenty-three thousand, twenty-one".