11301905231 has 2 divisors, whose sum is σ = 11301905232. Its totient is φ = 11301905230.

The previous prime is 11301905203. The next prime is 11301905257. The reversal of 11301905231 is 13250910311.

11301905231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (11301905257) can be obtained adding 11301905231 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11301905231 is a prime.

It is a super-2 number, since 2×11301905231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11301905231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11301905291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5650952615 + 5650952616.

It is an arithmetic number, because the mean of its divisors is an integer number (5650952616).

Almost surely, 2^11301905231 is an apocalyptic number.

11301905231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11301905231 is an equidigital number, since it uses as much as digits as its factorization.

11301905231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 26.

The spelling of 11301905231 in words is "eleven billion, three hundred one million, nine hundred five thousand, two hundred thirty-one".