20130133223031 has 32 divisors (see below), whose sum is σ = 31073476439040. Its totient is φ = 11486088572544.

The previous prime is 20130133223029. The next prime is 20130133223077. The reversal of 20130133223031 is 13032233103102.

It is not a de Polignac number, because 20130133223031 - 2¹ = 20130133223029 is a prime.

It is a super-2 number, since 2×20130133223031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20130133222992 and 20130133223010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130133223531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288967000 + ... + 289036653.

It is an arithmetic number, because the mean of its divisors is an integer number (971046138720).

Almost surely, 2^{20130133223031} is an apocalyptic number.

20130133223031 is a deficient number, since it is larger than the sum of its proper divisors (10943343216009).

20130133223031 is a wasteful number, since it uses less digits than its factorization.

20130133223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578003735.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20130133223031 its reverse (13032233103102), we get a palindrome (33162366326133).

The spelling of 20130133223031 in words is "twenty trillion, one hundred thirty billion, one hundred thirty-three million, two hundred twenty-three thousand, thirty-one".