1301023187 has 2 divisors, whose sum is σ = 1301023188. Its totient is φ = 1301023186.

The previous prime is 1301023183. The next prime is 1301023253. The reversal of 1301023187 is 7813201031.

It is a weak prime.

It is an emirp because it is prime and its reverse (7813201031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1301023187 - 2² = 1301023183 is a prime.

It is a super-2 number, since 2×1301023187² = 3385322666223273938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1301023183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650511593 + 650511594.

It is an arithmetic number, because the mean of its divisors is an integer number (650511594).

Almost surely, 2^1301023187 is an apocalyptic number.

1301023187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301023187 is an equidigital number, since it uses as much as digits as its factorization.

1301023187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1301023187 is about 36069.6990145468. The cubic root of 1301023187 is about 1091.6791410523.

The spelling of 1301023187 in words is "one billion, three hundred one million, twenty-three thousand, one hundred eighty-seven".