103030021999 has 4 divisors (see below), whose sum is σ = 103049153064. Its totient is φ = 103010890936.

The previous prime is 103030021967. The next prime is 103030022083. The reversal of 103030021999 is 999120030301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999120030301 = 35531 ⋅28119671.

It is a cyclic number.

It is not a de Polignac number, because 103030021999 - 2⁵ = 103030021967 is a prime.

It is a super-2 number, since 2×103030021999² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103030021799) 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, 9557452 + ... + 9568225.

It is an arithmetic number, because the mean of its divisors is an integer number (25762288266).

Almost surely, 2^103030021999 is an apocalyptic number.

103030021999 is a deficient number, since it is larger than the sum of its proper divisors (19131065).

103030021999 is an equidigital number, since it uses as much as digits as its factorization.

103030021999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19131064.

The product of its (nonzero) digits is 13122, while the sum is 37.

The spelling of 103030021999 in words is "one hundred three billion, thirty million, twenty-one thousand, nine hundred ninety-nine".