21132302400443 has 8 divisors (see below), whose sum is σ = 23747336477088. Its totient is φ = 18658621517184.

The previous prime is 21132302400361. The next prime is 21132302400457. The reversal of 21132302400443 is 34400420323112.

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 21132302400443 - 2³⁶ = 21063582923707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21132302409443) 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, 35338298030 + ... + 35338298627.

It is an arithmetic number, because the mean of its divisors is an integer number (2968417059636).

Almost surely, 2^{21132302400443} is an apocalyptic number.

21132302400443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21132302400443 is a deficient number, since it is larger than the sum of its proper divisors (2615034076645).

21132302400443 is a wasteful number, since it uses less digits than its factorization.

21132302400443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70676596693.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 21132302400443 its reverse (34400420323112), we get a palindrome (55532722723555).

The spelling of 21132302400443 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred two million, four hundred thousand, four hundred forty-three".