123533604435 has 16 divisors (see below), whose sum is σ = 197659345824. Its totient is φ = 65882729472.

The previous prime is 123533604431. The next prime is 123533604457. The reversal of 123533604435 is 534406335321.

It is not a de Polignac number, because 123533604435 - 2² = 123533604431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123533604393 and 123533604402.

It is not an unprimeable number, because it can be changed into a prime (123533604431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559779 + ... + 748611.

It is an arithmetic number, because the mean of its divisors is an integer number (12353709114).

Almost surely, 2^123533604435 is an apocalyptic number.

123533604435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123533604435 is a deficient number, since it is larger than the sum of its proper divisors (74125741389).

123533604435 is a wasteful number, since it uses less digits than its factorization.

123533604435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232454.

The product of its (nonzero) digits is 388800, while the sum is 39.

Adding to 123533604435 its reverse (534406335321), we get a palindrome (657939939756).

The spelling of 123533604435 in words is "one hundred twenty-three billion, five hundred thirty-three million, six hundred four thousand, four hundred thirty-five".