120020031331 has 4 divisors (see below), whose sum is σ = 127080033192. Its totient is φ = 112960029472.

The previous prime is 120020031319. The next prime is 120020031353. The reversal of 120020031331 is 133130020021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133130020021 = 19 ⋅7006843159.

It is not a de Polignac number, because 120020031331 - 2¹⁵ = 120019998563 is a prime.

It is a super-2 number, since 2×120020031331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120020031371) 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, 3530000905 + ... + 3530000938.

It is an arithmetic number, because the mean of its divisors is an integer number (31770008298).

Almost surely, 2^120020031331 is an apocalyptic number.

120020031331 is a deficient number, since it is larger than the sum of its proper divisors (7060001861).

120020031331 is an equidigital number, since it uses as much as digits as its factorization.

120020031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060001860.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 120020031331 its reverse (133130020021), we get a palindrome (253150051352).

The spelling of 120020031331 in words is "one hundred twenty billion, twenty million, thirty-one thousand, three hundred thirty-one".