10121897 has 2 divisors, whose sum is σ = 10121898. Its totient is φ = 10121896.

The previous prime is 10121833. The next prime is 10121911. The reversal of 10121897 is 79812101.

10121897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10118761 + 3136 = 3181^2 + 56^2 .

It is an emirp because it is prime and its reverse (79812101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10121897 - 2⁶ = 10121833 is a prime.

It is not a weakly prime, because it can be changed into another prime (10141897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060948 + 5060949.

It is an arithmetic number, because the mean of its divisors is an integer number (5060949).

Almost surely, 2^10121897 is an apocalyptic number.

It is an amenable number.

10121897 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121897 is an equidigital number, since it uses as much as digits as its factorization.

10121897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 10121897 is about 3181.4928885666. The cubic root of 10121897 is about 216.3153330391.

Adding to 10121897 its reverse (79812101), we get a palindrome (89933998).

The spelling of 10121897 in words is "ten million, one hundred twenty-one thousand, eight hundred ninety-seven".