120142031 has 2 divisors, whose sum is σ = 120142032. Its totient is φ = 120142030.

The previous prime is 120142027. The next prime is 120142037. The reversal of 120142031 is 130241021.

It is a weak prime.

It is an emirp because it is prime and its reverse (130241021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120142031 - 2² = 120142027 is a prime.

It is a super-2 number, since 2×120142031² = 28868215225609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120141997 and 120142015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120142037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60071015 + 60071016.

It is an arithmetic number, because the mean of its divisors is an integer number (60071016).

Almost surely, 2^120142031 is an apocalyptic number.

120142031 is a deficient number, since it is larger than the sum of its proper divisors (1).

120142031 is an equidigital number, since it uses as much as digits as its factorization.

120142031 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 14.

The square root of 120142031 is about 10960.9320315382. The cubic root of 120142031 is about 493.4369373452.

Adding to 120142031 its reverse (130241021), we get a palindrome (250383052).

The spelling of 120142031 in words is "one hundred twenty million, one hundred forty-two thousand, thirty-one".