11029392721 has 2 divisors, whose sum is σ = 11029392722. Its totient is φ = 11029392720.

The previous prime is 11029392637. The next prime is 11029392733. The reversal of 11029392721 is 12729392011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8750667025 + 2278725696 = 93545^2 + 47736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11029392721 is a prime.

It is not a weakly prime, because it can be changed into another prime (11029392221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5514696360 + 5514696361.

It is an arithmetic number, because the mean of its divisors is an integer number (5514696361).

Almost surely, 2^11029392721 is an apocalyptic number.

It is an amenable number.

11029392721 is a deficient number, since it is larger than the sum of its proper divisors (1).

11029392721 is an equidigital number, since it uses as much as digits as its factorization.

11029392721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 11029392721 in words is "eleven billion, twenty-nine million, three hundred ninety-two thousand, seven hundred twenty-one".