111121097 has 2 divisors, whose sum is σ = 111121098. Its totient is φ = 111121096.

The previous prime is 111121093. The next prime is 111121117. The reversal of 111121097 is 790121111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79637776 + 31483321 = 8924^2 + 5611^2 .

It is a cyclic number.

It is not a de Polignac number, because 111121097 - 2² = 111121093 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111121091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560548 + 55560549.

It is an arithmetic number, because the mean of its divisors is an integer number (55560549).

Almost surely, 2^111121097 is an apocalyptic number.

It is an amenable number.

111121097 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121097 is an equidigital number, since it uses as much as digits as its factorization.

111121097 is an odious number, because the sum of its binary digits is odd.

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

The square root of 111121097 is about 10541.3991955527. The cubic root of 111121097 is about 480.7642584817.

The spelling of 111121097 in words is "one hundred eleven million, one hundred twenty-one thousand, ninety-seven".