100130999 has 4 divisors (see below), whose sum is σ = 101398560. Its totient is φ = 98863440.

The previous prime is 100130993. The next prime is 100131001. The reversal of 100130999 is 999031001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999031001 = 19 ⋅52580579.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100130999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100130993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633662 + ... + 633819.

It is an arithmetic number, because the mean of its divisors is an integer number (25349640).

Almost surely, 2^100130999 is an apocalyptic number.

100130999 is a deficient number, since it is larger than the sum of its proper divisors (1267561).

100130999 is an equidigital number, since it uses as much as digits as its factorization.

100130999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267560.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 100130999 is about 10006.5478063116. The cubic root of 100130999 is about 464.3614760874.

The spelling of 100130999 in words is "one hundred million, one hundred thirty thousand, nine hundred ninety-nine".