1421101193 has 2 divisors, whose sum is σ = 1421101194. Its totient is φ = 1421101192.

The previous prime is 1421101177. The next prime is 1421101261. The reversal of 1421101193 is 3911011241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1171555984 + 249545209 = 34228^2 + 15797^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421101193 - 2⁴ = 1421101177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421101103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710550596 + 710550597.

It is an arithmetic number, because the mean of its divisors is an integer number (710550597).

Almost surely, 2^1421101193 is an apocalyptic number.

It is an amenable number.

1421101193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421101193 is an equidigital number, since it uses as much as digits as its factorization.

1421101193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1421101193 is about 37697.4958452150. The cubic root of 1421101193 is about 1124.2813366944.

The spelling of 1421101193 in words is "one billion, four hundred twenty-one million, one hundred one thousand, one hundred ninety-three".