2101429999 has 4 divisors (see below), whose sum is σ = 2121832336. Its totient is φ = 2081027664.

The previous prime is 2101429991. The next prime is 2101430003. The reversal of 2101429999 is 9999241012.

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 2101429999 - 2³ = 2101429991 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 (2101429991) 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, 10201014 + ... + 10201219.

It is an arithmetic number, because the mean of its divisors is an integer number (530458084).

Almost surely, 2^2101429999 is an apocalyptic number.

2101429999 is a deficient number, since it is larger than the sum of its proper divisors (20402337).

2101429999 is a wasteful number, since it uses less digits than its factorization.

2101429999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20402336.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 2101429999 is about 45841.3568625537. The cubic root of 2101429999 is about 1280.8697699753.

The spelling of 2101429999 in words is "two billion, one hundred one million, four hundred twenty-nine thousand, nine hundred ninety-nine".