20213110 has 16 divisors (see below), whose sum is σ = 36471456. Its totient is φ = 8065728.

The previous prime is 20213107. The next prime is 20213183. The reversal of 20213110 is 1131202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359 + ... + 6781.

It is an arithmetic number, because the mean of its divisors is an integer number (2279466).

Almost surely, 2^20213110 is an apocalyptic number.

20213110 is a deficient number, since it is larger than the sum of its proper divisors (16258346).

20213110 is a wasteful number, since it uses less digits than its factorization.

20213110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4887.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 20213110 is about 4495.8992426432. The cubic root of 20213110 is about 272.4024733061.

Adding to 20213110 its reverse (1131202), we get a palindrome (21344312).

The spelling of 20213110 in words is "twenty million, two hundred thirteen thousand, one hundred ten".