123203021233697 has 2 divisors, whose sum is σ = 123203021233698. Its totient is φ = 123203021233696.

The previous prime is 123203021233693. The next prime is 123203021233739. The reversal of 123203021233697 is 796332120302321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111578849221921 + 11624172011776 = 10563089^2 + 3409424^2 .

It is a cyclic number.

It is not a de Polignac number, because 123203021233697 - 2² = 123203021233693 is a prime.

It is a super-2 number, since 2×123203021233697² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123203021233693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61601510616848 + 61601510616849.

It is an arithmetic number, because the mean of its divisors is an integer number (61601510616849).

Almost surely, 2^{123203021233697} is an apocalyptic number.

It is an amenable number.

123203021233697 is a deficient number, since it is larger than the sum of its proper divisors (1).

123203021233697 is an equidigital number, since it uses as much as digits as its factorization.

123203021233697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 44.

The spelling of 123203021233697 in words is "one hundred twenty-three trillion, two hundred three billion, twenty-one million, two hundred thirty-three thousand, six hundred ninety-seven".