21113350360 has 16 divisors (see below), whose sum is σ = 47505038400. Its totient is φ = 8445340128.

The previous prime is 21113350351. The next prime is 21113350361. The reversal of 21113350360 is 6305331112.

It is a super-2 number, since 2×21113350360² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113350361) 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, 263916840 + ... + 263916919.

It is an arithmetic number, because the mean of its divisors is an integer number (2969064900).

Almost surely, 2^21113350360 is an apocalyptic number.

21113350360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21113350360 is an abundant number, since it is smaller than the sum of its proper divisors (26391688040).

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

21113350360 is a wasteful number, since it uses less digits than its factorization.

21113350360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527833770 (or 527833766 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 21113350360 its reverse (6305331112), we get a palindrome (27418681472).

The spelling of 21113350360 in words is "twenty-one billion, one hundred thirteen million, three hundred fifty thousand, three hundred sixty".