2130120331 has 2 divisors, whose sum is σ = 2130120332. Its totient is φ = 2130120330.

The previous prime is 2130120313. The next prime is 2130120353. The reversal of 2130120331 is 1330210312.

Together with previous prime (2130120313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2130120331 - 2¹⁵ = 2130087563 is a prime.

It is a super-2 number, since 2×2130120331² = 9074825249079099122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2130120631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065060165 + 1065060166.

It is an arithmetic number, because the mean of its divisors is an integer number (1065060166).

Almost surely, 2^2130120331 is an apocalyptic number.

2130120331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130120331 is an equidigital number, since it uses as much as digits as its factorization.

2130120331 is an evil number, because the sum of its binary digits is even.

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

The square root of 2130120331 is about 46153.2266585989. The cubic root of 2130120331 is about 1286.6725798258.

Adding to 2130120331 its reverse (1330210312), we get a palindrome (3460330643).

The spelling of 2130120331 in words is "two billion, one hundred thirty million, one hundred twenty thousand, three hundred thirty-one".