1101012197 has 2 divisors, whose sum is σ = 1101012198. Its totient is φ = 1101012196.

The previous prime is 1101012127. The next prime is 1101012257. The reversal of 1101012197 is 7912101011.

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., 927141601 + 173870596 = 30449^2 + 13186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101012197 - 2²² = 1096817893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101012127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550506098 + 550506099.

It is an arithmetic number, because the mean of its divisors is an integer number (550506099).

Almost surely, 2^1101012197 is an apocalyptic number.

It is an amenable number.

1101012197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101012197 is an equidigital number, since it uses as much as digits as its factorization.

1101012197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 23.

The square root of 1101012197 is about 33181.5038387352. The cubic root of 1101012197 is about 1032.5966459140.

The spelling of 1101012197 in words is "one billion, one hundred one million, twelve thousand, one hundred ninety-seven".