20214311 has 8 divisors (see below), whose sum is σ = 21807744. Its totient is φ = 18626400.

The previous prime is 20214289. The next prime is 20214319. The reversal of 20214311 is 11341202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20214311 - 2²² = 16020007 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 (20214319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9386 + ... + 11336.

It is an arithmetic number, because the mean of its divisors is an integer number (2725968).

Almost surely, 2^20214311 is an apocalyptic number.

20214311 is a deficient number, since it is larger than the sum of its proper divisors (1593433).

20214311 is a wasteful number, since it uses less digits than its factorization.

20214311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20214311 is about 4496.0328068198. The cubic root of 20214311 is about 272.4078683013.

Adding to 20214311 its reverse (11341202), we get a palindrome (31555513).

The spelling of 20214311 in words is "twenty million, two hundred fourteen thousand, three hundred eleven".