20343099 has 16 divisors (see below), whose sum is σ = 32000000. Its totient is φ = 11249280.

The previous prime is 20343097. The next prime is 20343137. The reversal of 20343099 is 99034302.

It is not a de Polignac number, because 20343099 - 2¹ = 20343097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20343097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14974 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (2000000).

Almost surely, 2^20343099 is an apocalyptic number.

20343099 is a deficient number, since it is larger than the sum of its proper divisors (11656901).

20343099 is a wasteful number, since it uses less digits than its factorization.

20343099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31290.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 20343099 is about 4510.3324711156. The cubic root of 20343099 is about 272.9851593323.

The spelling of 20343099 in words is "twenty million, three hundred forty-three thousand, ninety-nine".