11533302154981 has 2 divisors, whose sum is σ = 11533302154982. Its totient is φ = 11533302154980.

The previous prime is 11533302154973. The next prime is 11533302154987. The reversal of 11533302154981 is 18945120333511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8673790716900 + 2859511438081 = 2945130^2 + 1691009^2 .

It is a cyclic number.

It is not a de Polignac number, because 11533302154981 - 2³ = 11533302154973 is a prime.

It is a super-2 number, since 2×11533302154981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11533302154987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5766651077490 + 5766651077491.

It is an arithmetic number, because the mean of its divisors is an integer number (5766651077491).

Almost surely, 2^{11533302154981} is an apocalyptic number.

It is an amenable number.

11533302154981 is a deficient number, since it is larger than the sum of its proper divisors (1).

11533302154981 is an equidigital number, since it uses as much as digits as its factorization.

11533302154981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 11533302154981 in words is "eleven trillion, five hundred thirty-three billion, three hundred two million, one hundred fifty-four thousand, nine hundred eighty-one".