30440321999 has 4 divisors (see below), whose sum is σ = 30956259720. Its totient is φ = 29924384280.

The previous prime is 30440321983. The next prime is 30440322007. The reversal of 30440321999 is 99912304403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30440321999 - 2⁴ = 30440321983 is a prime.

It is a super-2 number, since 2×30440321999² (a number of 22 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 (30440321929) 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, 257968772 + ... + 257968889.

It is an arithmetic number, because the mean of its divisors is an integer number (7739064930).

Almost surely, 2^30440321999 is an apocalyptic number.

30440321999 is a deficient number, since it is larger than the sum of its proper divisors (515937721).

30440321999 is an equidigital number, since it uses as much as digits as its factorization.

30440321999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515937720.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 30440321999 in words is "thirty billion, four hundred forty million, three hundred twenty-one thousand, nine hundred ninety-nine".