3099112421 has 4 divisors (see below), whose sum is σ = 3099393792. Its totient is φ = 3098831052.

The previous prime is 3099112399. The next prime is 3099112453. The reversal of 3099112421 is 1242119903.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3099112421 - 2¹⁰ = 3099111397 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 (3099112481) 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, 123461 + ... + 146426.

It is an arithmetic number, because the mean of its divisors is an integer number (774848448).

Almost surely, 2^3099112421 is an apocalyptic number.

It is an amenable number.

3099112421 is a deficient number, since it is larger than the sum of its proper divisors (281371).

3099112421 is a wasteful number, since it uses less digits than its factorization.

3099112421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281370.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 3099112421 is about 55669.6723629662. The cubic root of 3099112421 is about 1457.9605635429.

The spelling of 3099112421 in words is "three billion, ninety-nine million, one hundred twelve thousand, four hundred twenty-one".