113129642749 has 2 divisors, whose sum is σ = 113129642750. Its totient is φ = 113129642748.

The previous prime is 113129642693. The next prime is 113129642809. The reversal of 113129642749 is 947246921311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81153765625 + 31975877124 = 284875^2 + 178818^2 .

It is an emirp because it is prime and its reverse (947246921311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113129642749 - 2¹⁹ = 113129118461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113129642149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56564821374 + 56564821375.

It is an arithmetic number, because the mean of its divisors is an integer number (56564821375).

Almost surely, 2^113129642749 is an apocalyptic number.

It is an amenable number.

113129642749 is a deficient number, since it is larger than the sum of its proper divisors (1).

113129642749 is an equidigital number, since it uses as much as digits as its factorization.

113129642749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 49.

The spelling of 113129642749 in words is "one hundred thirteen billion, one hundred twenty-nine million, six hundred forty-two thousand, seven hundred forty-nine".