20130113121332 has 24 divisors (see below), whose sum is σ = 35267002035720. Its totient is φ = 10053830799360.

The previous prime is 20130113121317. The next prime is 20130113121353. The reversal of 20130113121332 is 23312131103102.

It can be written as a sum of positive squares in 4 ways, for example, as 370630134436 + 19759482986896 = 608794^2 + 4445164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20130113121298 and 20130113121307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19884644 + ... + 20872452.

It is an arithmetic number, because the mean of its divisors is an integer number (1469458418155).

Almost surely, 2^{20130113121332} is an apocalyptic number.

It is an amenable number.

20130113121332 is a deficient number, since it is larger than the sum of its proper divisors (15136888914388).

20130113121332 is a wasteful number, since it uses less digits than its factorization.

20130113121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993491 (or 993489 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20130113121332 its reverse (23312131103102), we get a palindrome (43442244224434).

The spelling of 20130113121332 in words is "twenty trillion, one hundred thirty billion, one hundred thirteen million, one hundred twenty-one thousand, three hundred thirty-two".