11531402119973 has 2 divisors, whose sum is σ = 11531402119974. Its totient is φ = 11531402119972.

The previous prime is 11531402119961. The next prime is 11531402120033. The reversal of 11531402119973 is 37991120413511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11519120604289 + 12281515684 = 3393983^2 + 110822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11531402119973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11531402115973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765701059986 + 5765701059987.

It is an arithmetic number, because the mean of its divisors is an integer number (5765701059987).

Almost surely, 2^{11531402119973} is an apocalyptic number.

It is an amenable number.

11531402119973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11531402119973 is an equidigital number, since it uses as much as digits as its factorization.

11531402119973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 11531402119973 in words is "eleven trillion, five hundred thirty-one billion, four hundred two million, one hundred nineteen thousand, nine hundred seventy-three".