1311927184090 has 8 divisors (see below), whose sum is σ = 2361468931380. Its totient is φ = 524770873632.

The previous prime is 1311927184079. The next prime is 1311927184091. The reversal of 1311927184090 is 904817291131.

It can be written as a sum of positive squares in 2 ways, for example, as 1186032080601 + 125895103489 = 1089051^2 + 354817^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1311927184090.

It is not an unprimeable number, because it can be changed into a prime (1311927184091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65596359195 + ... + 65596359214.

Almost surely, 2^{1311927184090} is an apocalyptic number.

1311927184090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311927184090 is a deficient number, since it is larger than the sum of its proper divisors (1049541747290).

1311927184090 is a wasteful number, since it uses less digits than its factorization.

1311927184090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131192718416.

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 1311927184090 in words is "one trillion, three hundred eleven billion, nine hundred twenty-seven million, one hundred eighty-four thousand, ninety".