20213102 has 64 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 7312896.

The previous prime is 20213099. The next prime is 20213107. The reversal of 20213102 is 20131202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145349 + ... + 145487.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^20213102 is an apocalyptic number.

20213102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20213102 is a wasteful number, since it uses less digits than its factorization.

20213102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20213102 is about 4495.8983529435. The cubic root of 20213102 is about 272.4024373687.

Adding to 20213102 its reverse (20131202), we get a palindrome (40344304).

The spelling of 20213102 in words is "twenty million, two hundred thirteen thousand, one hundred two".