123533134113532 has 96 divisors (see below), whose sum is σ = 257481654312960. Its totient is φ = 51117031687680.

The previous prime is 123533134113469. The next prime is 123533134113533. The reversal of 123533134113532 is 235311431335321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123533134113533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440761513 + ... + 441041695.

It is an arithmetic number, because the mean of its divisors is an integer number (2682100565760).

Almost surely, 2^{123533134113532} is an apocalyptic number.

It is an amenable number.

123533134113532 is an abundant number, since it is smaller than the sum of its proper divisors (133948520199428).

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

123533134113532 is a wasteful number, since it uses less digits than its factorization.

123533134113532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290843 (or 290841 counting only the distinct ones).

The product of its digits is 291600, while the sum is 40.

Adding to 123533134113532 its reverse (235311431335321), we get a palindrome (358844565448853).

The spelling of 123533134113532 in words is "one hundred twenty-three trillion, five hundred thirty-three billion, one hundred thirty-four million, one hundred thirteen thousand, five hundred thirty-two".