20131233001 has 16 divisors (see below), whose sum is σ = 23509036800. Its totient is φ = 17044030800.

The previous prime is 20131232983. The next prime is 20131233013. The reversal of 20131233001 is 10033213102.

It is a cyclic number.

It is not a de Polignac number, because 20131233001 - 2⁵ = 20131232969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131233701) 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, 803955 + ... + 828616.

It is an arithmetic number, because the mean of its divisors is an integer number (1469314800).

Almost surely, 2^20131233001 is an apocalyptic number.

It is an amenable number.

20131233001 is a deficient number, since it is larger than the sum of its proper divisors (3377803799).

20131233001 is a wasteful number, since it uses less digits than its factorization.

20131233001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632660.

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

Adding to 20131233001 its reverse (10033213102), we get a palindrome (30164446103).

The spelling of 20131233001 in words is "twenty billion, one hundred thirty-one million, two hundred thirty-three thousand, one".