1021104197 has 2 divisors, whose sum is σ = 1021104198. Its totient is φ = 1021104196.

The previous prime is 1021104191. The next prime is 1021104211. The reversal of 1021104197 is 7914011201.

1021104197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1017227236 + 3876961 = 31894^2 + 1969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021104197 is a prime.

It is a super-2 number, since 2×1021104197² = 2085307562262029618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021104191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510552098 + 510552099.

It is an arithmetic number, because the mean of its divisors is an integer number (510552099).

Almost surely, 2^1021104197 is an apocalyptic number.

It is an amenable number.

1021104197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021104197 is an equidigital number, since it uses as much as digits as its factorization.

1021104197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1021104197 is about 31954.7210440022. The cubic root of 1021104197 is about 1006.9858170537.

Adding to 1021104197 its reverse (7914011201), we get a palindrome (8935115398).

The spelling of 1021104197 in words is "one billion, twenty-one million, one hundred four thousand, one hundred ninety-seven".