20214031 has 4 divisors (see below), whose sum is σ = 20232064. Its totient is φ = 20196000.

The previous prime is 20214023. The next prime is 20214053. The reversal of 20214031 is 13041202.

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 20214031 - 2³ = 20214023 is a prime.

It is a super-2 number, since 2×20214031² = 817214098537922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214001) 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, 7215 + ... + 9616.

It is an arithmetic number, because the mean of its divisors is an integer number (5058016).

Almost surely, 2^20214031 is an apocalyptic number.

20214031 is a deficient number, since it is larger than the sum of its proper divisors (18033).

20214031 is a wasteful number, since it uses less digits than its factorization.

20214031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18032.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20214031 is about 4496.0016681492. The cubic root of 20214031 is about 272.4066105363.

Adding to 20214031 its reverse (13041202), we get a palindrome (33255233).

The spelling of 20214031 in words is "twenty million, two hundred fourteen thousand, thirty-one".