65434312021003 has 4 divisors (see below), whose sum is σ = 66108892557400. Its totient is φ = 64759731484608.

The previous prime is 65434312020997. The next prime is 65434312021027. The reversal of 65434312021003 is 30012021343456.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65434312021003 - 2²⁹ = 65433775150091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65434312021003.

It is not an unprimeable number, because it can be changed into a prime (65434312021073) 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, 337290268053 + ... + 337290268246.

It is an arithmetic number, because the mean of its divisors is an integer number (16527223139350).

Almost surely, 2^{65434312021003} is an apocalyptic number.

65434312021003 is a deficient number, since it is larger than the sum of its proper divisors (674580536397).

65434312021003 is an equidigital number, since it uses as much as digits as its factorization.

65434312021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674580536396.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 65434312021003 its reverse (30012021343456), we get a palindrome (95446333364459).

The spelling of 65434312021003 in words is "sixty-five trillion, four hundred thirty-four billion, three hundred twelve million, twenty-one thousand, three".