20021113310 has 64 divisors (see below), whose sum is σ = 39797279424. Its totient is φ = 7191244800.

The previous prime is 20021113309. The next prime is 20021113369. The reversal of 20021113310 is 1331112002.

It is a super-2 number, since 2×20021113310² (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, 6539180 + ... + 6542240.

It is an arithmetic number, because the mean of its divisors is an integer number (621832491).

Almost surely, 2^20021113310 is an apocalyptic number.

20021113310 is a deficient number, since it is larger than the sum of its proper divisors (19776166114).

20021113310 is a wasteful number, since it uses less digits than its factorization.

20021113310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20021113310 its reverse (1331112002), we get a palindrome (21352225312).

It can be divided in two parts, 20021 and 113310, that added together give a palindrome (133331).

The spelling of 20021113310 in words is "twenty billion, twenty-one million, one hundred thirteen thousand, three hundred ten".