120018131 has 2 divisors, whose sum is σ = 120018132. Its totient is φ = 120018130.

The previous prime is 120018127. The next prime is 120018133. The reversal of 120018131 is 131810021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120018131 - 2² = 120018127 is a prime.

It is a super-2 number, since 2×120018131² = 28808703537466322, which contains 22 as substring.

Together with 120018133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120018133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60009065 + 60009066.

It is an arithmetic number, because the mean of its divisors is an integer number (60009066).

Almost surely, 2^120018131 is an apocalyptic number.

120018131 is a deficient number, since it is larger than the sum of its proper divisors (1).

120018131 is an equidigital number, since it uses as much as digits as its factorization.

120018131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 120018131 is about 10955.2786819871. The cubic root of 120018131 is about 493.2672552213.

Adding to 120018131 its reverse (131810021), we get a palindrome (251828152).

The spelling of 120018131 in words is "one hundred twenty million, eighteen thousand, one hundred thirty-one".