11619684223481 has 2 divisors, whose sum is σ = 11619684223482. Its totient is φ = 11619684223480.

The previous prime is 11619684223471. The next prime is 11619684223489. The reversal of 11619684223481 is 18432248691611.

11619684223481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9620797231081 + 1998886992400 = 3101741^2 + 1413820^2 .

It is a cyclic number.

It is not a de Polignac number, because 11619684223481 - 2¹⁰ = 11619684222457 is a prime.

It is a super-2 number, since 2×11619684223481² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11619684223489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5809842111740 + 5809842111741.

It is an arithmetic number, because the mean of its divisors is an integer number (5809842111741).

Almost surely, 2^{11619684223481} is an apocalyptic number.

It is an amenable number.

11619684223481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11619684223481 is an equidigital number, since it uses as much as digits as its factorization.

11619684223481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 56.

The spelling of 11619684223481 in words is "eleven trillion, six hundred nineteen billion, six hundred eighty-four million, two hundred twenty-three thousand, four hundred eighty-one".