2303120129491 has 2 divisors, whose sum is σ = 2303120129492. Its totient is φ = 2303120129490.

The previous prime is 2303120129419. The next prime is 2303120129501. The reversal of 2303120129491 is 1949210213032.

Together with previous prime (2303120129419) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2303120129491 - 2¹⁵ = 2303120096723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2303120129491.

It is not a weakly prime, because it can be changed into another prime (2303120129591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151560064745 + 1151560064746.

It is an arithmetic number, because the mean of its divisors is an integer number (1151560064746).

Almost surely, 2^{2303120129491} is an apocalyptic number.

2303120129491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303120129491 is an equidigital number, since it uses as much as digits as its factorization.

2303120129491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 2303120129491 in words is "two trillion, three hundred three billion, one hundred twenty million, one hundred twenty-nine thousand, four hundred ninety-one".