21392141323 has 8 divisors (see below), whose sum is σ = 25511125248. Its totient is φ = 17538898344.

The previous prime is 21392141317. The next prime is 21392141389. The reversal of 21392141323 is 32314129312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21392141323 - 2²⁹ = 20855270411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21392141123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66435061 + ... + 66435382.

It is an arithmetic number, because the mean of its divisors is an integer number (3188890656).

Almost surely, 2^21392141323 is an apocalyptic number.

21392141323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21392141323 is a deficient number, since it is larger than the sum of its proper divisors (4118983925).

21392141323 is a wasteful number, since it uses less digits than its factorization.

21392141323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132870473.

The product of its digits is 7776, while the sum is 31.

The spelling of 21392141323 in words is "twenty-one billion, three hundred ninety-two million, one hundred forty-one thousand, three hundred twenty-three".