123511045252552 has 64 divisors (see below), whose sum is σ = 237613875840000. Its totient is φ = 60174631973376.

The previous prime is 123511045252523. The next prime is 123511045252559. The reversal of 123511045252552 is 255252540115321.

It is a junction number, because it is equal to n+sod(n) for n = 123511045252499 and 123511045252508.

It is not an unprimeable number, because it can be changed into a prime (123511045252559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7951449 + ... + 17613847.

It is an arithmetic number, because the mean of its divisors is an integer number (3712716810000).

Almost surely, 2^{123511045252552} is an apocalyptic number.

It is an amenable number.

123511045252552 is a deficient number, since it is larger than the sum of its proper divisors (114102830587448).

123511045252552 is a wasteful number, since it uses less digits than its factorization.

123511045252552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9662758 (or 9662754 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 43.

Adding to 123511045252552 its reverse (255252540115321), we get a palindrome (378763585367873).

The spelling of 123511045252552 in words is "one hundred twenty-three trillion, five hundred eleven billion, forty-five million, two hundred fifty-two thousand, five hundred fifty-two".