120135511 has 2 divisors, whose sum is σ = 120135512. Its totient is φ = 120135510.

The previous prime is 120135497. The next prime is 120135517. The reversal of 120135511 is 115531021.

It is a strong prime.

It is an emirp because it is prime and its reverse (115531021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120135511 - 2⁷ = 120135383 is a prime.

It is a super-2 number, since 2×120135511² = 28865082006462242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120135517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60067755 + 60067756.

It is an arithmetic number, because the mean of its divisors is an integer number (60067756).

Almost surely, 2^120135511 is an apocalyptic number.

120135511 is a deficient number, since it is larger than the sum of its proper divisors (1).

120135511 is an equidigital number, since it uses as much as digits as its factorization.

120135511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 120135511 is about 10960.6346075398. The cubic root of 120135511 is about 493.4280110574.

Adding to 120135511 its reverse (115531021), we get a palindrome (235666532).

The spelling of 120135511 in words is "one hundred twenty million, one hundred thirty-five thousand, five hundred eleven".