20131300220104 has 8 divisors (see below), whose sum is σ = 37746187912710. Its totient is φ = 10065650110048.

The previous prime is 20131300220027. The next prime is 20131300220159. The reversal of 20131300220104 is 40102200313102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15570521402500 + 4560778817604 = 3945950^2 + 2135598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258206263749 + ... + 1258206263764.

Almost surely, 2^{20131300220104} is an apocalyptic number.

It is an amenable number.

20131300220104 is a deficient number, since it is larger than the sum of its proper divisors (17614887692606).

20131300220104 is a wasteful number, since it uses less digits than its factorization.

20131300220104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516412527519 (or 2516412527515 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20131300220104 its reverse (40102200313102), we get a palindrome (60233500533206).

The spelling of 20131300220104 in words is "twenty trillion, one hundred thirty-one billion, three hundred million, two hundred twenty thousand, one hundred four".