1272118301 has 2 divisors, whose sum is σ = 1272118302. Its totient is φ = 1272118300.

The previous prime is 1272118291. The next prime is 1272118307. The reversal of 1272118301 is 1038112721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1133938276 + 138180025 = 33674^2 + 11755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272118301 - 2²⁶ = 1205009437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272118307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636059150 + 636059151.

It is an arithmetic number, because the mean of its divisors is an integer number (636059151).

Almost surely, 2^1272118301 is an apocalyptic number.

It is an amenable number.

1272118301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272118301 is an equidigital number, since it uses as much as digits as its factorization.

1272118301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 1272118301 is about 35666.7674593591. The cubic root of 1272118301 is about 1083.5338918832.

The spelling of 1272118301 in words is "one billion, two hundred seventy-two million, one hundred eighteen thousand, three hundred one".