65212331023 has 4 divisors (see below), whose sum is σ = 74528378320. Its totient is φ = 55896283728.

The previous prime is 65212331003. The next prime is 65212331029. The reversal of 65212331023 is 32013321256.

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 65212331023 - 2²¹ = 65210233871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65212330982 and 65212331000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65212331029) 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, 4658023638 + ... + 4658023651.

It is an arithmetic number, because the mean of its divisors is an integer number (18632094580).

Almost surely, 2^65212331023 is an apocalyptic number.

65212331023 is a deficient number, since it is larger than the sum of its proper divisors (9316047297).

65212331023 is an equidigital number, since it uses as much as digits as its factorization.

65212331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9316047296.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 65212331023 its reverse (32013321256), we get a palindrome (97225652279).

It can be divided in two parts, 6521233 and 1023, that added together give a palindrome (6522256).

The spelling of 65212331023 in words is "sixty-five billion, two hundred twelve million, three hundred thirty-one thousand, twenty-three".