11111022525542 has 64 divisors (see below), whose sum is σ = 18127951994880. Its totient is φ = 5087510208000.

The previous prime is 11111022525521. The next prime is 11111022525569. The reversal of 11111022525542 is 24552522011111.

It is a junction number, because it is equal to n+sod(n) for n = 11111022525499 and 11111022525508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1432013459 + ... + 1432021217.

It is an arithmetic number, because the mean of its divisors is an integer number (283249249920).

Almost surely, 2^{11111022525542} is an apocalyptic number.

11111022525542 is a deficient number, since it is larger than the sum of its proper divisors (7016929469338).

11111022525542 is a wasteful number, since it uses less digits than its factorization.

11111022525542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12957.

The product of its (nonzero) digits is 8000, while the sum is 32.

Adding to 11111022525542 its reverse (24552522011111), we get a palindrome (35663544536653).

The spelling of 11111022525542 in words is "eleven trillion, one hundred eleven billion, twenty-two million, five hundred twenty-five thousand, five hundred forty-two".