20131303221130 has 16 divisors (see below), whose sum is σ = 36436546606824. Its totient is φ = 8008032219840.

The previous prime is 20131303221119. The next prime is 20131303221191. The reversal of 20131303221130 is 3112230313102.

It can be written as a sum of positive squares in 4 ways, for example, as 4558169490169 + 15573133730961 = 2134987^2 + 3946281^2 .

It is a super-2 number, since 2×20131303221130² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5561131677 + ... + 5561135296.

Almost surely, 2^{20131303221130} is an apocalyptic number.

20131303221130 is a deficient number, since it is larger than the sum of its proper divisors (16305243385694).

20131303221130 is a wasteful number, since it uses less digits than its factorization.

20131303221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11122267161.

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

Adding to 20131303221130 its reverse (3112230313102), we get a palindrome (23243533534232).

The spelling of 20131303221130 in words is "twenty trillion, one hundred thirty-one billion, three hundred three million, two hundred twenty-one thousand, one hundred thirty".