123503503134 has 16 divisors (see below), whose sum is σ = 269462188800. Its totient is φ = 37425303960.

The previous prime is 123503503117. The next prime is 123503503139. The reversal of 123503503134 is 431305305321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123503503139) 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 7 ways as a sum of consecutive naturals, for example, 935632534 + ... + 935632665.

It is an arithmetic number, because the mean of its divisors is an integer number (16841386800).

Almost surely, 2^123503503134 is an apocalyptic number.

123503503134 is an abundant number, since it is smaller than the sum of its proper divisors (145958685666).

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

123503503134 is a wasteful number, since it uses less digits than its factorization.

123503503134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871265215.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 123503503134 its reverse (431305305321), we get a palindrome (554808808455).

The spelling of 123503503134 in words is "one hundred twenty-three billion, five hundred three million, five hundred three thousand, one hundred thirty-four".