123139570597 has 2 divisors, whose sum is σ = 123139570598. Its totient is φ = 123139570596.

The previous prime is 123139570591. The next prime is 123139570607. The reversal of 123139570597 is 795075931321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61678219201 + 61461351396 = 248351^2 + 247914^2 .

It is a cyclic number.

It is not a de Polignac number, because 123139570597 - 2⁷ = 123139570469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123139570591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61569785298 + 61569785299.

It is an arithmetic number, because the mean of its divisors is an integer number (61569785299).

Almost surely, 2^123139570597 is an apocalyptic number.

It is an amenable number.

123139570597 is a deficient number, since it is larger than the sum of its proper divisors (1).

123139570597 is an equidigital number, since it uses as much as digits as its factorization.

123139570597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1786050, while the sum is 52.

The spelling of 123139570597 in words is "one hundred twenty-three billion, one hundred thirty-nine million, five hundred seventy thousand, five hundred ninety-seven".