20131001223203 has 8 divisors (see below), whose sum is σ = 21679579688928. Its totient is φ = 18582428458944.

The previous prime is 20131001223187. The next prime is 20131001223251. The reversal of 20131001223203 is 30232210013102.

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 20131001223203 - 2⁴ = 20131001223187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131001223803) 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, 8433650 + ... + 10554072.

It is an arithmetic number, because the mean of its divisors is an integer number (2709947461116).

Almost surely, 2^{20131001223203} is an apocalyptic number.

20131001223203 is a deficient number, since it is larger than the sum of its proper divisors (1548578465725).

20131001223203 is a wasteful number, since it uses less digits than its factorization.

20131001223203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850733.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20131001223203 its reverse (30232210013102), we get a palindrome (50363211236305).

The spelling of 20131001223203 in words is "twenty trillion, one hundred thirty-one billion, one million, two hundred twenty-three thousand, two hundred three".