1318901211 has 12 divisors (see below), whose sum is σ = 1975638392. Its totient is φ = 879267312.

The previous prime is 1318901209. The next prime is 1318901251. The reversal of 1318901211 is 1121098131.

It is not a de Polignac number, because 1318901211 - 2¹ = 1318901209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318901201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2713546 + ... + 2714031.

Almost surely, 2^1318901211 is an apocalyptic number.

1318901211 is a deficient number, since it is larger than the sum of its proper divisors (656737181).

1318901211 is an frugal number, since it uses more digits than its factorization.

1318901211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5427592 (or 5427580 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 1318901211 is about 36316.6795150658. The cubic root of 1318901211 is about 1096.6568499761.

Adding to 1318901211 its reverse (1121098131), we get a palindrome (2439999342).

The spelling of 1318901211 in words is "one billion, three hundred eighteen million, nine hundred one thousand, two hundred eleven".