123530142554504 has 32 divisors (see below), whose sum is σ = 264735600841920. Its totient is φ = 52935859164096.

The previous prime is 123530142554473. The next prime is 123530142554519. The reversal of 123530142554504 is 405455241035321.

It is a happy number.

It is a super-2 number, since 2×123530142554504² (a number of 29 digits) contains 22 as substring.

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, 116770859 + ... + 117823994.

It is an arithmetic number, because the mean of its divisors is an integer number (8272987526310).

Almost surely, 2^{123530142554504} is an apocalyptic number.

123530142554504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123530142554504 is an abundant number, since it is smaller than the sum of its proper divisors (141205458287416).

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

123530142554504 is a wasteful number, since it uses less digits than its factorization.

123530142554504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234604269 (or 234604265 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 123530142554504 its reverse (405455241035321), we get a palindrome (528985383589825).

The spelling of 123530142554504 in words is "one hundred twenty-three trillion, five hundred thirty billion, one hundred forty-two million, five hundred fifty-four thousand, five hundred four".