123534503413 has 4 divisors (see below), whose sum is σ = 125022871008. Its totient is φ = 122046135820.

The previous prime is 123534503353. The next prime is 123534503461. The reversal of 123534503413 is 314305435321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123534503413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123534503513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744183673 + ... + 744183838.

It is an arithmetic number, because the mean of its divisors is an integer number (31255717752).

Almost surely, 2^123534503413 is an apocalyptic number.

It is an amenable number.

123534503413 is a deficient number, since it is larger than the sum of its proper divisors (1488367595).

123534503413 is an equidigital number, since it uses as much as digits as its factorization.

123534503413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488367594.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 123534503413 its reverse (314305435321), we get a palindrome (437839938734).

The spelling of 123534503413 in words is "one hundred twenty-three billion, five hundred thirty-four million, five hundred three thousand, four hundred thirteen".