11358902021 has 2 divisors, whose sum is σ = 11358902022. Its totient is φ = 11358902020.

The previous prime is 11358902011. The next prime is 11358902047. The reversal of 11358902021 is 12020985311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10896436996 + 462465025 = 104386^2 + 21505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11358902021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11358902011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5679451010 + 5679451011.

It is an arithmetic number, because the mean of its divisors is an integer number (5679451011).

Almost surely, 2^11358902021 is an apocalyptic number.

It is an amenable number.

11358902021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11358902021 is an equidigital number, since it uses as much as digits as its factorization.

11358902021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 11358902021 in words is "eleven billion, three hundred fifty-eight million, nine hundred two thousand, twenty-one".