1301248747999 has 2 divisors, whose sum is σ = 1301248748000. Its totient is φ = 1301248747998.

The previous prime is 1301248747951. The next prime is 1301248748003. The reversal of 1301248747999 is 9997478421031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1301248747999 - 2¹³ = 1301248739807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1301248747999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301248747699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650624373999 + 650624374000.

It is an arithmetic number, because the mean of its divisors is an integer number (650624374000).

Almost surely, 2^{1301248747999} is an apocalyptic number.

1301248747999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301248747999 is an equidigital number, since it uses as much as digits as its factorization.

1301248747999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 1301248747999 in words is "one trillion, three hundred one billion, two hundred forty-eight million, seven hundred forty-seven thousand, nine hundred ninety-nine".