2001322000023 has 16 divisors (see below), whose sum is σ = 2784695778816. Its totient is φ = 1276091768160.

The previous prime is 2001322000001. The next prime is 2001322000037. The reversal of 2001322000023 is 3200002231002.

It is not a de Polignac number, because 2001322000023 - 2⁵ = 2001321999991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001321999966 and 2001322000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001322000043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506068 + ... + 2063673.

It is an arithmetic number, because the mean of its divisors is an integer number (174043486176).

Almost surely, 2^{2001322000023} is an apocalyptic number.

2001322000023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2001322000023 is a deficient number, since it is larger than the sum of its proper divisors (783373778793).

2001322000023 is a wasteful number, since it uses less digits than its factorization.

2001322000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581054.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 2001322000023 its reverse (3200002231002), we get a palindrome (5201324231025).

The spelling of 2001322000023 in words is "two trillion, one billion, three hundred twenty-two million, twenty-three", and thus it is an aban number.