1300242091 has 2 divisors, whose sum is σ = 1300242092. Its totient is φ = 1300242090.

The previous prime is 1300242089. The next prime is 1300242101. The reversal of 1300242091 is 1902420031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1300242091 - 2¹ = 1300242089 is a prime.

Together with 1300242089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1300242491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650121045 + 650121046.

It is an arithmetic number, because the mean of its divisors is an integer number (650121046).

Almost surely, 2^1300242091 is an apocalyptic number.

1300242091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300242091 is an equidigital number, since it uses as much as digits as its factorization.

1300242091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1300242091 is about 36058.8697964870. The cubic root of 1300242091 is about 1091.4606266496.

The spelling of 1300242091 in words is "one billion, three hundred million, two hundred forty-two thousand, ninety-one".