11123142532542 has 32 divisors (see below), whose sum is σ = 24718203452160. Its totient is φ = 3707697837240.

The previous prime is 11123142532499. The next prime is 11123142532577. The reversal of 11123142532542 is 24523524132111.

11123142532542 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 31 + 42 + 532 + 54 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11123142532497 and 11123142532506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23945917 + ... + 24406007.

It is an arithmetic number, because the mean of its divisors is an integer number (772443857880).

Almost surely, 2^{11123142532542} is an apocalyptic number.

11123142532542 is an abundant number, since it is smaller than the sum of its proper divisors (13595060919618).

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

11123142532542 is a wasteful number, since it uses less digits than its factorization.

11123142532542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907805 (or 907799 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 11123142532542 its reverse (24523524132111), we get a palindrome (35646666664653).

The spelling of 11123142532542 in words is "eleven trillion, one hundred twenty-three billion, one hundred forty-two million, five hundred thirty-two thousand, five hundred forty-two".