123364240505 has 32 divisors (see below), whose sum is σ = 162094141440. Its totient is φ = 89387193280.

The previous prime is 123364240481. The next prime is 123364240511. The reversal of 123364240505 is 505042463321.

It is not a de Polignac number, because 123364240505 - 2⁸ = 123364240249 is a prime.

It is a super-3 number, since 3×123364240505³ (a number of 34 digits) contains 333 as substring.

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, 19884734 + ... + 19890936.

It is an arithmetic number, because the mean of its divisors is an integer number (5065441920).

Almost surely, 2^123364240505 is an apocalyptic number.

It is an amenable number.

123364240505 is a deficient number, since it is larger than the sum of its proper divisors (38729900935).

123364240505 is a wasteful number, since it uses less digits than its factorization.

123364240505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 123364240505 in words is "one hundred twenty-three billion, three hundred sixty-four million, two hundred forty thousand, five hundred five".