10001020321023 has 32 divisors (see below), whose sum is σ = 13853776742400. Its totient is φ = 6412670035200.

The previous prime is 10001020321003. The next prime is 10001020321037. The reversal of 10001020321023 is 32012302010001.

It is not a de Polignac number, because 10001020321023 - 2⁶ = 10001020320959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10001020320993 and 10001020321011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001020321003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5644398 + ... + 7201476.

It is an arithmetic number, because the mean of its divisors is an integer number (432930523200).

Almost surely, 2^{10001020321023} is an apocalyptic number.

10001020321023 is a deficient number, since it is larger than the sum of its proper divisors (3852756421377).

10001020321023 is a wasteful number, since it uses less digits than its factorization.

10001020321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557863.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10001020321023 its reverse (32012302010001), we get a palindrome (42013322331024).

The spelling of 10001020321023 in words is "ten trillion, one billion, twenty million, three hundred twenty-one thousand, twenty-three".