123132433505 has 32 divisors (see below), whose sum is σ = 159420908160. Its totient is φ = 91017907200.

The previous prime is 123132433471. The next prime is 123132433511. The reversal of 123132433505 is 505334231321.

It is not a de Polignac number, because 123132433505 - 2⁶ = 123132433441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547097 + ... + 738633.

It is an arithmetic number, because the mean of its divisors is an integer number (4981903380).

Almost surely, 2^123132433505 is an apocalyptic number.

It is an amenable number.

123132433505 is a deficient number, since it is larger than the sum of its proper divisors (36288474655).

123132433505 is a wasteful number, since it uses less digits than its factorization.

123132433505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191729.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 123132433505 its reverse (505334231321), we get a palindrome (628466664826).

The spelling of 123132433505 in words is "one hundred twenty-three billion, one hundred thirty-two million, four hundred thirty-three thousand, five hundred five".