20021102310 has 64 divisors (see below), whose sum is σ = 54109845504. Its totient is φ = 4697030400.

The previous prime is 20021102221. The next prime is 20021102327. The reversal of 20021102310 is 1320112002.

It is a super-2 number, since 2×20021102310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 968319 + ... + 988778.

It is an arithmetic number, because the mean of its divisors is an integer number (845466336).

Almost surely, 2^20021102310 is an apocalyptic number.

20021102310 is an abundant number, since it is smaller than the sum of its proper divisors (34088743194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021102310 is a wasteful number, since it uses less digits than its factorization.

20021102310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957149.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20021102310 its reverse (1320112002), we get a palindrome (21341214312).

The spelling of 20021102310 in words is "twenty billion, twenty-one million, one hundred two thousand, three hundred ten".