1317131204 has 6 divisors (see below), whose sum is σ = 2304979614. Its totient is φ = 658565600.

The previous prime is 1317131201. The next prime is 1317131239. The reversal of 1317131204 is 4021317131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1183497604 + 133633600 = 34402^2 + 11560^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1317131204.

It is not an unprimeable number, because it can be changed into a prime (1317131201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164641397 + ... + 164641404.

It is an arithmetic number, because the mean of its divisors is an integer number (384163269).

Almost surely, 2^1317131204 is an apocalyptic number.

It is an amenable number.

1317131204 is a deficient number, since it is larger than the sum of its proper divisors (987848410).

1317131204 is a wasteful number, since it uses less digits than its factorization.

1317131204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329282805 (or 329282803 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1317131204 is about 36292.3022692141. The cubic root of 1317131204 is about 1096.1660476659.

Adding to 1317131204 its reverse (4021317131), we get a palindrome (5338448335).

The spelling of 1317131204 in words is "one billion, three hundred seventeen million, one hundred thirty-one thousand, two hundred four".