21113111133310 has 32 divisors (see below), whose sum is σ = 43920693478080. Its totient is φ = 7157446340352.

The previous prime is 21113111133307. The next prime is 21113111133319. The reversal of 21113111133310 is 1333111131112.

It is a super-2 number, since 2×21113111133310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113111133319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694464969 + ... + 1694477428.

It is an arithmetic number, because the mean of its divisors is an integer number (1372521671190).

Almost surely, 2^{21113111133310} is an apocalyptic number.

21113111133310 is an abundant number, since it is smaller than the sum of its proper divisors (22807582344770).

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

21113111133310 is a wasteful number, since it uses less digits than its factorization.

21113111133310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388942500.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 21113111133310 its reverse (1333111131112), we get a palindrome (22446222264422).

The spelling of 21113111133310 in words is "twenty-one trillion, one hundred thirteen billion, one hundred eleven million, one hundred thirty-three thousand, three hundred ten".