123154326156 has 12 divisors (see below), whose sum is σ = 287360094392. Its totient is φ = 41051442048.

The previous prime is 123154326151. The next prime is 123154326167. The reversal of 123154326156 is 651623451321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (123154326151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5131430245 + ... + 5131430268.

Almost surely, 2^123154326156 is an apocalyptic number.

It is an amenable number.

123154326156 is an abundant number, since it is smaller than the sum of its proper divisors (164205768236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123154326156 is a wasteful number, since it uses less digits than its factorization.

123154326156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262860520 (or 10262860518 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

Adding to 123154326156 its reverse (651623451321), we get a palindrome (774777777477).

The spelling of 123154326156 in words is "one hundred twenty-three billion, one hundred fifty-four million, three hundred twenty-six thousand, one hundred fifty-six".