11111053396721 has 8 divisors (see below), whose sum is σ = 11260412427264. Its totient is φ = 10962661091760.

The previous prime is 11111053396697. The next prime is 11111053396759. The reversal of 11111053396721 is 12769335011111.

It is a happy number.

11111053396721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111053396721 - 2⁶ = 11111053396657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111053356721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241658255 + ... + 241704228.

It is an arithmetic number, because the mean of its divisors is an integer number (1407551553408).

Almost surely, 2^{11111053396721} is an apocalyptic number.

It is an amenable number.

11111053396721 is a deficient number, since it is larger than the sum of its proper divisors (149359030543).

11111053396721 is a wasteful number, since it uses less digits than its factorization.

11111053396721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483362791.

The product of its (nonzero) digits is 34020, while the sum is 41.

The spelling of 11111053396721 in words is "eleven trillion, one hundred eleven billion, fifty-three million, three hundred ninety-six thousand, seven hundred twenty-one".