123002534136 has 16 divisors (see below), whose sum is σ = 307506335400. Its totient is φ = 41000844704.

The previous prime is 123002534131. The next prime is 123002534147. The reversal of 123002534136 is 631435200321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123002534131) 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 3 ways as a sum of consecutive naturals, for example, 2562552771 + ... + 2562552818.

Almost surely, 2^123002534136 is an apocalyptic number.

It is an amenable number.

123002534136 is an abundant number, since it is smaller than the sum of its proper divisors (184503801264).

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

123002534136 is a wasteful number, since it uses less digits than its factorization.

123002534136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125105598 (or 5125105594 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 123002534136 its reverse (631435200321), we get a palindrome (754437734457).

The spelling of 123002534136 in words is "one hundred twenty-three billion, two million, five hundred thirty-four thousand, one hundred thirty-six".