11130605621 has 2 divisors, whose sum is σ = 11130605622. Its totient is φ = 11130605620.

The previous prime is 11130605617. The next prime is 11130605657. The reversal of 11130605621 is 12650603111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9465149521 + 1665456100 = 97289^2 + 40810^2 .

It is a cyclic number.

It is not a de Polignac number, because 11130605621 - 2² = 11130605617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11130605921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565302810 + 5565302811.

It is an arithmetic number, because the mean of its divisors is an integer number (5565302811).

Almost surely, 2^11130605621 is an apocalyptic number.

It is an amenable number.

11130605621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11130605621 is an equidigital number, since it uses as much as digits as its factorization.

11130605621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 11130605621 in words is "eleven billion, one hundred thirty million, six hundred five thousand, six hundred twenty-one".