120311129 has 2 divisors, whose sum is σ = 120311130. Its totient is φ = 120311128.

The previous prime is 120311101. The next prime is 120311153. The reversal of 120311129 is 921113021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118483225 + 1827904 = 10885^2 + 1352^2 .

It is an emirp because it is prime and its reverse (921113021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120311129 - 2⁸ = 120310873 is a prime.

It is a super-2 number, since 2×120311129² = 28949535522509282, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120311129.

It is not a weakly prime, because it can be changed into another prime (120311189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60155564 + 60155565.

It is an arithmetic number, because the mean of its divisors is an integer number (60155565).

Almost surely, 2^120311129 is an apocalyptic number.

It is an amenable number.

120311129 is a deficient number, since it is larger than the sum of its proper divisors (1).

120311129 is an equidigital number, since it uses as much as digits as its factorization.

120311129 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 20.

The square root of 120311129 is about 10968.6429880820. The cubic root of 120311129 is about 493.6683303685.

The spelling of 120311129 in words is "one hundred twenty million, three hundred eleven thousand, one hundred twenty-nine".