11340261487 has 2 divisors, whose sum is σ = 11340261488. Its totient is φ = 11340261486.

The previous prime is 11340261479. The next prime is 11340261509. The reversal of 11340261487 is 78416204311.

It is a weak prime.

It is an emirp because it is prime and its reverse (78416204311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11340261487 - 2³ = 11340261479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11340261437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5670130743 + 5670130744.

It is an arithmetic number, because the mean of its divisors is an integer number (5670130744).

Almost surely, 2^11340261487 is an apocalyptic number.

11340261487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11340261487 is an equidigital number, since it uses as much as digits as its factorization.

11340261487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

Adding to 11340261487 its reverse (78416204311), we get a palindrome (89756465798).

The spelling of 11340261487 in words is "eleven billion, three hundred forty million, two hundred sixty-one thousand, four hundred eighty-seven".