101305999 has 2 divisors, whose sum is σ = 101306000. Its totient is φ = 101305998.

The previous prime is 101305993. The next prime is 101306003. The reversal of 101305999 is 999503101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101305999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101305993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50652999 + 50653000.

It is an arithmetic number, because the mean of its divisors is an integer number (50653000).

Almost surely, 2^101305999 is an apocalyptic number.

101305999 is a deficient number, since it is larger than the sum of its proper divisors (1).

101305999 is an equidigital number, since it uses as much as digits as its factorization.

101305999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10935, while the sum is 37.

The square root of 101305999 is about 10065.0881267876. The cubic root of 101305999 is about 466.1707869272.

It can be divided in two parts, 10130 and 5999, that added together give a square (16129 = 127²).

The spelling of 101305999 in words is "one hundred one million, three hundred five thousand, nine hundred ninety-nine".