121001020097 has 2 divisors, whose sum is σ = 121001020098. Its totient is φ = 121001020096.

The previous prime is 121001020093. The next prime is 121001020099. The reversal of 121001020097 is 790020100121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103745833216 + 17255186881 = 322096^2 + 131359^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001020097 - 2² = 121001020093 is a prime.

Together with 121001020099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121001020093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500510048 + 60500510049.

It is an arithmetic number, because the mean of its divisors is an integer number (60500510049).

Almost surely, 2^121001020097 is an apocalyptic number.

It is an amenable number.

121001020097 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001020097 is an equidigital number, since it uses as much as digits as its factorization.

121001020097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 121001020097 in words is "one hundred twenty-one billion, one million, twenty thousand, ninety-seven".