11621732201 has 2 divisors, whose sum is σ = 11621732202. Its totient is φ = 11621732200.

The previous prime is 11621732191. The next prime is 11621732209. The reversal of 11621732201 is 10223712611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11599074601 + 22657600 = 107699^2 + 4760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11621732201 is a prime.

It is not a weakly prime, because it can be changed into another prime (11621732209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810866100 + 5810866101.

It is an arithmetic number, because the mean of its divisors is an integer number (5810866101).

Almost surely, 2^11621732201 is an apocalyptic number.

It is an amenable number.

11621732201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621732201 is an equidigital number, since it uses as much as digits as its factorization.

11621732201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 11621732201 in words is "eleven billion, six hundred twenty-one million, seven hundred thirty-two thousand, two hundred one".