20098311 has 16 divisors (see below), whose sum is σ = 27379200. Its totient is φ = 13111488.

The previous prime is 20098307. The next prime is 20098313. The reversal of 20098311 is 11389002.

It is not a de Polignac number, because 20098311 - 2² = 20098307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20098313) 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, 32160 + ... + 32778.

It is an arithmetic number, because the mean of its divisors is an integer number (1711200).

Almost surely, 2^20098311 is an apocalyptic number.

20098311 is a deficient number, since it is larger than the sum of its proper divisors (7280889).

20098311 is a wasteful number, since it uses less digits than its factorization.

20098311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 20098311 is about 4483.1139847209. The cubic root of 20098311 is about 271.8857967439.

The spelling of 20098311 in words is "twenty million, ninety-eight thousand, three hundred eleven".