120249131 has 2 divisors, whose sum is σ = 120249132. Its totient is φ = 120249130.

The previous prime is 120249071. The next prime is 120249161. The reversal of 120249131 is 131942021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120249131 - 2⁶ = 120249067 is a prime.

It is a super-2 number, since 2×120249131² = 28919707012510322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 120249097 and 120249106.

It is not a weakly prime, because it can be changed into another prime (120249161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60124565 + 60124566.

It is an arithmetic number, because the mean of its divisors is an integer number (60124566).

Almost surely, 2^120249131 is an apocalyptic number.

120249131 is a deficient number, since it is larger than the sum of its proper divisors (1).

120249131 is an equidigital number, since it uses as much as digits as its factorization.

120249131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 120249131 is about 10965.8164766697. The cubic root of 120249131 is about 493.5835177437.

The spelling of 120249131 in words is "one hundred twenty million, two hundred forty-nine thousand, one hundred thirty-one".