121300129 has 2 divisors, whose sum is σ = 121300130. Its totient is φ = 121300128.

The previous prime is 121300079. The next prime is 121300141. The reversal of 121300129 is 921003121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85599504 + 35700625 = 9252^2 + 5975^2 .

It is a cyclic number.

It is not a de Polignac number, because 121300129 - 2⁹ = 121299617 is a prime.

It is not a weakly prime, because it can be changed into another prime (121300159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60650064 + 60650065.

It is an arithmetic number, because the mean of its divisors is an integer number (60650065).

Almost surely, 2^121300129 is an apocalyptic number.

It is an amenable number.

121300129 is a deficient number, since it is larger than the sum of its proper divisors (1).

121300129 is an equidigital number, since it uses as much as digits as its factorization.

121300129 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 19.

The square root of 121300129 is about 11013.6337781860. The cubic root of 121300129 is about 495.0173500023.

The spelling of 121300129 in words is "one hundred twenty-one million, three hundred thousand, one hundred twenty-nine".