9621023201 has 2 divisors, whose sum is σ = 9621023202. Its totient is φ = 9621023200.

The previous prime is 9621023177. The next prime is 9621023213. The reversal of 9621023201 is 1023201269.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5734124176 + 3886899025 = 75724^2 + 62345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9621023201 is a prime.

It is not a weakly prime, because it can be changed into another prime (9621023221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4810511600 + 4810511601.

It is an arithmetic number, because the mean of its divisors is an integer number (4810511601).

Almost surely, 2^9621023201 is an apocalyptic number.

It is an amenable number.

9621023201 is a deficient number, since it is larger than the sum of its proper divisors (1).

9621023201 is an equidigital number, since it uses as much as digits as its factorization.

9621023201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 9621023201 is about 98086.8146133822. The cubic root of 9621023201 is about 2126.8674297938.

The spelling of 9621023201 in words is "nine billion, six hundred twenty-one million, twenty-three thousand, two hundred one".