123530071253 has 2 divisors, whose sum is σ = 123530071254. Its totient is φ = 123530071252.

The previous prime is 123530071219. The next prime is 123530071267. The reversal of 123530071253 is 352170035321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109307600689 + 14222470564 = 330617^2 + 119258^2 .

It is a cyclic number.

It is not a de Polignac number, because 123530071253 - 2¹⁰ = 123530070229 is a prime.

It is a super-3 number, since 3×123530071253³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123530071853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61765035626 + 61765035627.

It is an arithmetic number, because the mean of its divisors is an integer number (61765035627).

Almost surely, 2^123530071253 is an apocalyptic number.

It is an amenable number.

123530071253 is a deficient number, since it is larger than the sum of its proper divisors (1).

123530071253 is an equidigital number, since it uses as much as digits as its factorization.

123530071253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 32.

The spelling of 123530071253 in words is "one hundred twenty-three billion, five hundred thirty million, seventy-one thousand, two hundred fifty-three".