120031669 has 2 divisors, whose sum is σ = 120031670. Its totient is φ = 120031668.

The previous prime is 120031661. The next prime is 120031673. The reversal of 120031669 is 966130021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97278769 + 22752900 = 9863^2 + 4770^2 .

It is a cyclic number.

It is not a de Polignac number, because 120031669 - 2³ = 120031661 is a prime.

It is a super-2 number, since 2×120031669² = 28815203125851122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120031661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60015834 + 60015835.

It is an arithmetic number, because the mean of its divisors is an integer number (60015835).

Almost surely, 2^120031669 is an apocalyptic number.

It is an amenable number.

120031669 is a deficient number, since it is larger than the sum of its proper divisors (1).

120031669 is an equidigital number, since it uses as much as digits as its factorization.

120031669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 120031669 is about 10955.8965402198. The cubic root of 120031669 is about 493.2858013108.

The spelling of 120031669 in words is "one hundred twenty million, thirty-one thousand, six hundred sixty-nine".