20130132331231 has 16 divisors (see below), whose sum is σ = 21746798740800. Its totient is φ = 18523245212928.

The previous prime is 20130132331217. The next prime is 20130132331237. The reversal of 20130132331231 is 13213323103102.

It is a cyclic number.

It is not a de Polignac number, because 20130132331231 - 2²³ = 20130123942623 is a prime.

It is a super-3 number, since 3×20130132331231³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20130132331196 and 20130132331205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130132331237) 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, 12242995 + ... + 13789531.

It is an arithmetic number, because the mean of its divisors is an integer number (1359174921300).

Almost surely, 2^{20130132331231} is an apocalyptic number.

20130132331231 is a deficient number, since it is larger than the sum of its proper divisors (1616666409569).

20130132331231 is a wasteful number, since it uses less digits than its factorization.

20130132331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549698.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20130132331231 its reverse (13213323103102), we get a palindrome (33343455434333).

The spelling of 20130132331231 in words is "twenty trillion, one hundred thirty billion, one hundred thirty-two million, three hundred thirty-one thousand, two hundred thirty-one".