120042244031 has 4 divisors (see below), whose sum is σ = 120566446200. Its totient is φ = 119518041864.

The previous prime is 120042244013. The next prime is 120042244037. The reversal of 120042244031 is 130442240021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130442240021 = 2017 ⋅64671413.

It is a cyclic number.

It is not a de Polignac number, because 120042244031 - 2²⁶ = 119975135167 is a prime.

It is a super-2 number, since 2×120042244031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120042243988 and 120042244006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120042244037) 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, 262100741 + ... + 262101198.

It is an arithmetic number, because the mean of its divisors is an integer number (30141611550).

Almost surely, 2^120042244031 is an apocalyptic number.

120042244031 is a deficient number, since it is larger than the sum of its proper divisors (524202169).

120042244031 is an equidigital number, since it uses as much as digits as its factorization.

120042244031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524202168.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 120042244031 its reverse (130442240021), we get a palindrome (250484484052).

The spelling of 120042244031 in words is "one hundred twenty billion, forty-two million, two hundred forty-four thousand, thirty-one".