11375137511 has 2 divisors, whose sum is σ = 11375137512. Its totient is φ = 11375137510.

The previous prime is 11375137507. The next prime is 11375137517. The reversal of 11375137511 is 11573157311.

It is a weak prime.

It is an emirp because it is prime and its reverse (11573157311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11375137511 - 2² = 11375137507 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11375137517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5687568755 + 5687568756.

It is an arithmetic number, because the mean of its divisors is an integer number (5687568756).

Almost surely, 2^11375137511 is an apocalyptic number.

11375137511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11375137511 is an equidigital number, since it uses as much as digits as its factorization.

11375137511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11025, while the sum is 35.

The spelling of 11375137511 in words is "eleven billion, three hundred seventy-five million, one hundred thirty-seven thousand, five hundred eleven".