1317025011 has 16 divisors (see below), whose sum is σ = 1833940224. Its totient is φ = 839128224.

The previous prime is 1317025009. The next prime is 1317025051. The reversal of 1317025011 is 1105207131.

It is a happy number.

It is not a de Polignac number, because 1317025011 - 2¹ = 1317025009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1317025051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80640 + ... + 95586.

It is an arithmetic number, because the mean of its divisors is an integer number (114621264).

Almost surely, 2^1317025011 is an apocalyptic number.

1317025011 is a deficient number, since it is larger than the sum of its proper divisors (516915213).

1317025011 is a wasteful number, since it uses less digits than its factorization.

1317025011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16250.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1317025011 is about 36290.8392159785. The cubic root of 1317025011 is about 1096.1365876068.

The spelling of 1317025011 in words is "one billion, three hundred seventeen million, twenty-five thousand, eleven".