21143823114 has 16 divisors (see below), whose sum is σ = 42289077600. Its totient is φ = 7047702480.

The previous prime is 21143823053. The next prime is 21143823139. The reversal of 21143823114 is 41132834112.

It is a super-2 number, since 2×21143823114² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290704 + ... + 356084.

It is an arithmetic number, because the mean of its divisors is an integer number (2643067350).

Almost surely, 2^21143823114 is an apocalyptic number.

21143823114 is an abundant number, since it is smaller than the sum of its proper divisors (21145254486).

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

21143823114 is a wasteful number, since it uses less digits than its factorization.

21143823114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119285.

The product of its digits is 4608, while the sum is 30.

The spelling of 21143823114 in words is "twenty-one billion, one hundred forty-three million, eight hundred twenty-three thousand, one hundred fourteen".