11154226481 has 2 divisors, whose sum is σ = 11154226482. Its totient is φ = 11154226480.

The previous prime is 11154226409. The next prime is 11154226547. The reversal of 11154226481 is 18462245111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8950862881 + 2203363600 = 94609^2 + 46940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11154226481 is a prime.

It is a super-2 number, since 2×11154226481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11154226781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577113240 + 5577113241.

It is an arithmetic number, because the mean of its divisors is an integer number (5577113241).

Almost surely, 2^11154226481 is an apocalyptic number.

It is an amenable number.

11154226481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11154226481 is an equidigital number, since it uses as much as digits as its factorization.

11154226481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 35.

The spelling of 11154226481 in words is "eleven billion, one hundred fifty-four million, two hundred twenty-six thousand, four hundred eighty-one".