20131032121303 has 4 divisors (see below), whose sum is σ = 20131874694568. Its totient is φ = 20130189548040.

The previous prime is 20131032121259. The next prime is 20131032121337. The reversal of 20131032121303 is 30312123013102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20131032121303 - 2²¹ = 20131030024151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131032121393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421250793 + ... + 421298578.

It is an arithmetic number, because the mean of its divisors is an integer number (5032968673642).

Almost surely, 2^{20131032121303} is an apocalyptic number.

20131032121303 is a deficient number, since it is larger than the sum of its proper divisors (842573265).

20131032121303 is an equidigital number, since it uses as much as digits as its factorization.

20131032121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842573264.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20131032121303 its reverse (30312123013102), we get a palindrome (50443155134405).

The spelling of 20131032121303 in words is "twenty trillion, one hundred thirty-one billion, thirty-two million, one hundred twenty-one thousand, three hundred three".