1100101997 has 2 divisors, whose sum is σ = 1100101998. Its totient is φ = 1100101996.

The previous prime is 1100101993. The next prime is 1100102021. The reversal of 1100101997 is 7991010011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1082344201 + 17757796 = 32899^2 + 4214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100101997 - 2² = 1100101993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100101993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550050998 + 550050999.

It is an arithmetic number, because the mean of its divisors is an integer number (550050999).

Almost surely, 2^1100101997 is an apocalyptic number.

It is an amenable number.

1100101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100101997 is an equidigital number, since it uses as much as digits as its factorization.

1100101997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 29.

The square root of 1100101997 is about 33167.7855305415. The cubic root of 1100101997 is about 1032.3120203718.

The spelling of 1100101997 in words is "one billion, one hundred million, one hundred one thousand, nine hundred ninety-seven".