123133313534 has 48 divisors (see below), whose sum is σ = 237211462656. Its totient is φ = 47395983600.

The previous prime is 123133313531. The next prime is 123133313539. The reversal of 123133313534 is 435313331321.

It is a self number, because there is not a number n which added to its sum of digits gives 123133313534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133313531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598622 + ... + 777569.

It is an arithmetic number, because the mean of its divisors is an integer number (4941905472).

Almost surely, 2^123133313534 is an apocalyptic number.

123133313534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123133313534 is a deficient number, since it is larger than the sum of its proper divisors (114078149122).

123133313534 is a wasteful number, since it uses less digits than its factorization.

123133313534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376301 (or 1376294 counting only the distinct ones).

The product of its digits is 29160, while the sum is 32.

Adding to 123133313534 its reverse (435313331321), we get a palindrome (558446644855).

The spelling of 123133313534 in words is "one hundred twenty-three billion, one hundred thirty-three million, three hundred thirteen thousand, five hundred thirty-four".