2001303123001 has 16 divisors (see below), whose sum is σ = 2463180015744. Its totient is φ = 1583424382464.

The previous prime is 2001303122963. The next prime is 2001303123011. The reversal of 2001303123001 is 1003213031002.

It is a cyclic number.

It is not a de Polignac number, because 2001303123001 - 2⁷ = 2001303122873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001303123011) 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, 7944681 + ... + 8192713.

It is an arithmetic number, because the mean of its divisors is an integer number (153948750984).

Almost surely, 2^{2001303123001} is an apocalyptic number.

It is an amenable number.

2001303123001 is a deficient number, since it is larger than the sum of its proper divisors (461876892743).

2001303123001 is a wasteful number, since it uses less digits than its factorization.

2001303123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336720.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 2001303123001 its reverse (1003213031002), we get a palindrome (3004516154003).

The spelling of 2001303123001 in words is "two trillion, one billion, three hundred three million, one hundred twenty-three thousand, one".