20130132023231 has 4 divisors (see below), whose sum is σ = 20130151062264. Its totient is φ = 20130112984200.

The previous prime is 20130132023201. The next prime is 20130132023273. The reversal of 20130132023231 is 13232023103102.

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 20130132023231 - 2⁶ = 20130132023167 is a prime.

It is a super-2 number, since 2×20130132023231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20130132023197 and 20130132023206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130132023201) 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, 7834085 + ... + 10081326.

It is an arithmetic number, because the mean of its divisors is an integer number (5032537765566).

Almost surely, 2^{20130132023231} is an apocalyptic number.

20130132023231 is a deficient number, since it is larger than the sum of its proper divisors (19039033).

20130132023231 is a wasteful number, since it uses less digits than its factorization.

20130132023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19039032.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20130132023231 its reverse (13232023103102), we get a palindrome (33362155126333).

The spelling of 20130132023231 in words is "twenty trillion, one hundred thirty billion, one hundred thirty-two million, twenty-three thousand, two hundred thirty-one".