21435123327037 has 8 divisors (see below), whose sum is σ = 24500518681856. Its totient is φ = 18370536692112.

The previous prime is 21435123327011. The next prime is 21435123327061. The reversal of 21435123327037 is 73072332153412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21435123327037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21435123326984 and 21435123327002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21435123327337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202123173 + ... + 202229194.

It is an arithmetic number, because the mean of its divisors is an integer number (3062564835232).

Almost surely, 2^{21435123327037} is an apocalyptic number.

It is an amenable number.

21435123327037 is a deficient number, since it is larger than the sum of its proper divisors (3065395354819).

21435123327037 is an equidigital number, since it uses as much as digits as its factorization.

21435123327037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404359947.

The product of its (nonzero) digits is 635040, while the sum is 43.

The spelling of 21435123327037 in words is "twenty-one trillion, four hundred thirty-five billion, one hundred twenty-three million, three hundred twenty-seven thousand, thirty-seven".