21333331113 has 16 divisors (see below), whose sum is σ = 28578513600. Its totient is φ = 14155236864.

The previous prime is 21333331111. The next prime is 21333331177. The reversal of 21333331113 is 31113333312.

It is not a de Polignac number, because 21333331113 - 2¹ = 21333331111 is a prime.

It is a super-2 number, since 2×21333331113² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21333331111) 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, 2206113 + ... + 2215761.

It is an arithmetic number, because the mean of its divisors is an integer number (1786157100).

Almost surely, 2^21333331113 is an apocalyptic number.

It is an amenable number.

21333331113 is a deficient number, since it is larger than the sum of its proper divisors (7245182487).

21333331113 is a wasteful number, since it uses less digits than its factorization.

21333331113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13048.

The product of its digits is 1458, while the sum is 24.

Adding to 21333331113 its reverse (31113333312), we get a palindrome (52446664425).

The spelling of 21333331113 in words is "twenty-one billion, three hundred thirty-three million, three hundred thirty-one thousand, one hundred thirteen".