123134421313 has 2 divisors, whose sum is σ = 123134421314. Its totient is φ = 123134421312.

The previous prime is 123134421287. The next prime is 123134421337. The reversal of 123134421313 is 313124431321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111888243009 + 11246178304 = 334497^2 + 106048^2 .

It is a cyclic number.

It is not a de Polignac number, because 123134421313 - 2¹³ = 123134413121 is a prime.

It is not a weakly prime, because it can be changed into another prime (123134421343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61567210656 + 61567210657.

It is an arithmetic number, because the mean of its divisors is an integer number (61567210657).

Almost surely, 2^123134421313 is an apocalyptic number.

It is an amenable number.

123134421313 is a deficient number, since it is larger than the sum of its proper divisors (1).

123134421313 is an equidigital number, since it uses as much as digits as its factorization.

123134421313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

Adding to 123134421313 its reverse (313124431321), we get a palindrome (436258852634).

The spelling of 123134421313 in words is "one hundred twenty-three billion, one hundred thirty-four million, four hundred twenty-one thousand, three hundred thirteen".