1298750423027 has 2 divisors, whose sum is σ = 1298750423028. Its totient is φ = 1298750423026.

The previous prime is 1298750423023. The next prime is 1298750423051. The reversal of 1298750423027 is 7203240578921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1298750423027 - 2² = 1298750423023 is a prime.

It is a super-2 number, since 2×1298750423027² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1298750423023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649375211513 + 649375211514.

It is an arithmetic number, because the mean of its divisors is an integer number (649375211514).

Almost surely, 2^{1298750423027} is an apocalyptic number.

1298750423027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298750423027 is an equidigital number, since it uses as much as digits as its factorization.

1298750423027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 1298750423027 in words is "one trillion, two hundred ninety-eight billion, seven hundred fifty million, four hundred twenty-three thousand, twenty-seven".