21101112093 has 16 divisors (see below), whose sum is σ = 29623755200. Its totient is φ = 13323346560.

The previous prime is 21101112077. The next prime is 21101112101. The reversal of 21101112093 is 39021110112.

It is a happy number.

It is not a de Polignac number, because 21101112093 - 2⁴ = 21101112077 is a prime.

It is a super-2 number, since 2×21101112093² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101112013) 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, 165723 + ... + 263943.

It is an arithmetic number, because the mean of its divisors is an integer number (1851484700).

Almost surely, 2^21101112093 is an apocalyptic number.

It is an amenable number.

21101112093 is a deficient number, since it is larger than the sum of its proper divisors (8522643107).

21101112093 is a wasteful number, since it uses less digits than its factorization.

21101112093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102012.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 21101112093 in words is "twenty-one billion, one hundred one million, one hundred twelve thousand, ninety-three".