123021097 has 2 divisors, whose sum is σ = 123021098. Its totient is φ = 123021096.

The previous prime is 123021083. The next prime is 123021121. The reversal of 123021097 is 790120321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123010281 + 10816 = 11091^2 + 104^2 .

It is a cyclic number.

It is not a de Polignac number, because 123021097 - 2¹⁵ = 122988329 is a prime.

It is not a weakly prime, because it can be changed into another prime (123021007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61510548 + 61510549.

It is an arithmetic number, because the mean of its divisors is an integer number (61510549).

Almost surely, 2^123021097 is an apocalyptic number.

It is an amenable number.

123021097 is a deficient number, since it is larger than the sum of its proper divisors (1).

123021097 is an equidigital number, since it uses as much as digits as its factorization.

123021097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 123021097 is about 11091.4875918427. The cubic root of 123021097 is about 497.3474151393.

The spelling of 123021097 in words is "one hundred twenty-three million, twenty-one thousand, ninety-seven".