120213242312021 has 4 divisors (see below), whose sum is σ = 122183951202444. Its totient is φ = 118242533421600.

The previous prime is 120213242311973. The next prime is 120213242312027.

120213242312021 is nontrivially palindromic in base 10.

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 55160774620900 + 65052467691121 = 7427030^2 + 8065511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120213242312021 is a prime.

It is a super-2 number, since 2×120213242312021² (a number of 29 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 (120213242312027) 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, 985354445120 + ... + 985354445241.

It is an arithmetic number, because the mean of its divisors is an integer number (30545987800611).

Almost surely, 2^{120213242312021} is an apocalyptic number.

It is an amenable number.

120213242312021 is a deficient number, since it is larger than the sum of its proper divisors (1970708890423).

120213242312021 is an equidigital number, since it uses as much as digits as its factorization.

120213242312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970708890422.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 120213242312021 in words is "one hundred twenty trillion, two hundred thirteen billion, two hundred forty-two million, three hundred twelve thousand, twenty-one".