9953621101 has 2 divisors, whose sum is σ = 9953621102. Its totient is φ = 9953621100.

The previous prime is 9953621053. The next prime is 9953621107. The reversal of 9953621101 is 1011263599.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7943443876 + 2010177225 = 89126^2 + 44835^2 .

It is a cyclic number.

It is not a de Polignac number, because 9953621101 - 2⁷ = 9953620973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9953621107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976810550 + 4976810551.

It is an arithmetic number, because the mean of its divisors is an integer number (4976810551).

Almost surely, 2^9953621101 is an apocalyptic number.

It is an amenable number.

9953621101 is a deficient number, since it is larger than the sum of its proper divisors (1).

9953621101 is an equidigital number, since it uses as much as digits as its factorization.

9953621101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 9953621101 is about 99767.8360043957. The cubic root of 9953621101 is about 2151.0988506561.

The spelling of 9953621101 in words is "nine billion, nine hundred fifty-three million, six hundred twenty-one thousand, one hundred one".