1001021310223 has 16 divisors (see below), whose sum is σ = 1157212944000. Its totient is φ = 856337525280.

The previous prime is 1001021310161. The next prime is 1001021310241. The reversal of 1001021310223 is 3220131201001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001021310223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001021310197 and 1001021310206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001021310253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16041261 + ... + 16103542.

It is an arithmetic number, because the mean of its divisors is an integer number (72325809000).

Almost surely, 2^{1001021310223} is an apocalyptic number.

1001021310223 is a deficient number, since it is larger than the sum of its proper divisors (156191633777).

1001021310223 is a wasteful number, since it uses less digits than its factorization.

1001021310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32144982.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1001021310223 its reverse (3220131201001), we get a palindrome (4221152511224).

The spelling of 1001021310223 in words is "one trillion, one billion, twenty-one million, three hundred ten thousand, two hundred twenty-three".