2001201010123 has 8 divisors (see below), whose sum is σ = 2287104302592. Its totient is φ = 1715302076136.

The previous prime is 2001201010111. The next prime is 2001201010139. The reversal of 2001201010123 is 3210101021002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001201010123 - 2⁹ = 2001201009611 is a prime.

It is a super-3 number, since 3×2001201010123³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001201010423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38065 + ... + 2000962.

It is an arithmetic number, because the mean of its divisors is an integer number (285888037824).

Almost surely, 2^{2001201010123} is an apocalyptic number.

2001201010123 is a deficient number, since it is larger than the sum of its proper divisors (285903292469).

2001201010123 is a wasteful number, since it uses less digits than its factorization.

2001201010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179241.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2001201010123 its reverse (3210101021002), we get a palindrome (5211302031125).

The spelling of 2001201010123 in words is "two trillion, one billion, two hundred one million, ten thousand, one hundred twenty-three".