1101204021097 has 2 divisors, whose sum is σ = 1101204021098. Its totient is φ = 1101204021096.

The previous prime is 1101204021061. The next prime is 1101204021139. The reversal of 1101204021097 is 7901204021011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1077155455321 + 24048565776 = 1037861^2 + 155076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101204021097 - 2²³ = 1101195632489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101204021007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550602010548 + 550602010549.

It is an arithmetic number, because the mean of its divisors is an integer number (550602010549).

Almost surely, 2^{1101204021097} is an apocalyptic number.

It is an amenable number.

1101204021097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101204021097 is an equidigital number, since it uses as much as digits as its factorization.

1101204021097 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 28.

The spelling of 1101204021097 in words is "one trillion, one hundred one billion, two hundred four million, twenty-one thousand, ninety-seven".