11455421141 has 2 divisors, whose sum is σ = 11455421142. Its totient is φ = 11455421140.

The previous prime is 11455421123. The next prime is 11455421161. The reversal of 11455421141 is 14112455411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9835680625 + 1619740516 = 99175^2 + 40246^2 .

It is a cyclic number.

It is not a de Polignac number, because 11455421141 - 2¹⁸ = 11455158997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11455421161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5727710570 + 5727710571.

It is an arithmetic number, because the mean of its divisors is an integer number (5727710571).

Almost surely, 2^11455421141 is an apocalyptic number.

It is an amenable number.

11455421141 is a deficient number, since it is larger than the sum of its proper divisors (1).

11455421141 is an equidigital number, since it uses as much as digits as its factorization.

11455421141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 29.

Adding to 11455421141 its reverse (14112455411), we get a palindrome (25567876552).

The spelling of 11455421141 in words is "eleven billion, four hundred fifty-five million, four hundred twenty-one thousand, one hundred forty-one".