10840821323 has 2 divisors, whose sum is σ = 10840821324. Its totient is φ = 10840821322.

The previous prime is 10840821293. The next prime is 10840821349. The reversal of 10840821323 is 32312804801.

It is a strong prime.

It is an emirp because it is prime and its reverse (32312804801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10840821323 is a prime.

It is a super-2 number, since 2×10840821323² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10840821323.

It is not a weakly prime, because it can be changed into another prime (10840821023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5420410661 + 5420410662.

It is an arithmetic number, because the mean of its divisors is an integer number (5420410662).

Almost surely, 2^10840821323 is an apocalyptic number.

10840821323 is a deficient number, since it is larger than the sum of its proper divisors (1).

10840821323 is an equidigital number, since it uses as much as digits as its factorization.

10840821323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 10840821323 in words is "ten billion, eight hundred forty million, eight hundred twenty-one thousand, three hundred twenty-three".