21323201132001 has 4 divisors (see below), whose sum is σ = 28430934842672. Its totient is φ = 14215467421332.

The previous prime is 21323201131933. The next prime is 21323201132011. The reversal of 21323201132001 is 10023110232312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21323201132001 - 2²³ = 21323192743393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21323201132011) 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, 3553866855331 + ... + 3553866855336.

It is an arithmetic number, because the mean of its divisors is an integer number (7107733710668).

Almost surely, 2^{21323201132001} is an apocalyptic number.

It is an amenable number.

21323201132001 is a deficient number, since it is larger than the sum of its proper divisors (7107733710671).

21323201132001 is an equidigital number, since it uses as much as digits as its factorization.

21323201132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107733710670.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21323201132001 its reverse (10023110232312), we get a palindrome (31346311364313).

The spelling of 21323201132001 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred one million, one hundred thirty-two thousand, one".