21301414023 has 4 divisors (see below), whose sum is σ = 28401885368. Its totient is φ = 14200942680.

The previous prime is 21301414021. The next prime is 21301414039. The reversal of 21301414023 is 32041410312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21301414023 - 2¹ = 21301414021 is a prime.

It is a super-2 number, since 2×21301414023² (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 (21301414021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3550235668 + ... + 3550235673.

It is an arithmetic number, because the mean of its divisors is an integer number (7100471342).

Almost surely, 2^21301414023 is an apocalyptic number.

21301414023 is a deficient number, since it is larger than the sum of its proper divisors (7100471345).

21301414023 is an equidigital number, since it uses as much as digits as its factorization.

21301414023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7100471344.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21301414023 its reverse (32041410312), we get a palindrome (53342824335).

The spelling of 21301414023 in words is "twenty-one billion, three hundred one million, four hundred fourteen thousand, twenty-three".