20099411 has 4 divisors (see below), whose sum is σ = 20174400. Its totient is φ = 20024424.

The previous prime is 20099383. The next prime is 20099419. The reversal of 20099411 is 11499002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11499002 = 2 ⋅5749501.

It is a cyclic number.

It is not a de Polignac number, because 20099411 - 2¹⁴ = 20083027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20099419) 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, 37091 + ... + 37628.

It is an arithmetic number, because the mean of its divisors is an integer number (5043600).

Almost surely, 2^20099411 is an apocalyptic number.

20099411 is a deficient number, since it is larger than the sum of its proper divisors (74989).

20099411 is an equidigital number, since it uses as much as digits as its factorization.

20099411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74988.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 20099411 is about 4483.2366656245. The cubic root of 20099411 is about 271.8907568443.

The spelling of 20099411 in words is "twenty million, ninety-nine thousand, four hundred eleven".