10321321143 has 24 divisors (see below), whose sum is σ = 16110581232. Its totient is φ = 5860318464.

The previous prime is 10321321117. The next prime is 10321321147. The reversal of 10321321143 is 34112312301.

It is not a de Polignac number, because 10321321143 - 2⁵ = 10321321111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321321147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200530 + ... + 246687.

It is an arithmetic number, because the mean of its divisors is an integer number (671274218).

Almost surely, 2^10321321143 is an apocalyptic number.

10321321143 is a deficient number, since it is larger than the sum of its proper divisors (5789260089).

10321321143 is a wasteful number, since it uses less digits than its factorization.

10321321143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447391 (or 447384 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 10321321143 its reverse (34112312301), we get a palindrome (44433633444).

The spelling of 10321321143 in words is "ten billion, three hundred twenty-one million, three hundred twenty-one thousand, one hundred forty-three".