21312032201183 has 2 divisors, whose sum is σ = 21312032201184. Its totient is φ = 21312032201182.

The previous prime is 21312032201107. The next prime is 21312032201189. The reversal of 21312032201183 is 38110223021312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21312032201183 is a prime.

It is a super-2 number, since 2×21312032201183² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21312032201189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10656016100591 + 10656016100592.

It is an arithmetic number, because the mean of its divisors is an integer number (10656016100592).

Almost surely, 2^{21312032201183} is an apocalyptic number.

21312032201183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21312032201183 is an equidigital number, since it uses as much as digits as its factorization.

21312032201183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 21312032201183 its reverse (38110223021312), we get a palindrome (59422255222495).

The spelling of 21312032201183 in words is "twenty-one trillion, three hundred twelve billion, thirty-two million, two hundred one thousand, one hundred eighty-three".