123433420154 has 16 divisors (see below), whose sum is σ = 206279450496. Its totient is φ = 54912352800.

The previous prime is 123433420141. The next prime is 123433420169. The reversal of 123433420154 is 451024334321.

It is a super-3 number, since 3×123433420154³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123433420154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59686307 + ... + 59688374.

It is an arithmetic number, because the mean of its divisors is an integer number (12892465656).

Almost surely, 2^123433420154 is an apocalyptic number.

123433420154 is a deficient number, since it is larger than the sum of its proper divisors (82846030342).

123433420154 is a wasteful number, since it uses less digits than its factorization.

123433420154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119374741.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 123433420154 its reverse (451024334321), we get a palindrome (574457754475).

The spelling of 123433420154 in words is "one hundred twenty-three billion, four hundred thirty-three million, four hundred twenty thousand, one hundred fifty-four".