123543535313 has 6 divisors (see below), whose sum is σ = 135795786882. Its totient is φ = 112312304720.

The previous prime is 123543535309. The next prime is 123543535369. The reversal of 123543535313 is 313535345321.

It can be written as a sum of positive squares in only one way, i.e., 95114877649 + 28428657664 = 308407^2 + 168608^2 .

It is not a de Polignac number, because 123543535313 - 2² = 123543535309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123543535513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510510356 + ... + 510510597.

It is an arithmetic number, because the mean of its divisors is an integer number (22632631147).

Almost surely, 2^123543535313 is an apocalyptic number.

It is an amenable number.

123543535313 is a deficient number, since it is larger than the sum of its proper divisors (12252251569).

123543535313 is a wasteful number, since it uses less digits than its factorization.

123543535313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021020975 (or 1021020964 counting only the distinct ones).

The product of its digits is 243000, while the sum is 38.

It can be divided in two parts, 123543 and 535313, that added together give a palindrome (658856).

The spelling of 123543535313 in words is "one hundred twenty-three billion, five hundred forty-three million, five hundred thirty-five thousand, three hundred thirteen".