11111042255420 has 24 divisors (see below), whose sum is σ = 23902290902448. Its totient is φ = 4336016489600.

The previous prime is 11111042255371. The next prime is 11111042255449. The reversal of 11111042255420 is 2455224011111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6775024946 + ... + 6775026585.

It is an arithmetic number, because the mean of its divisors is an integer number (995928787602).

Almost surely, 2^{11111042255420} is an apocalyptic number.

11111042255420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111042255420 is an abundant number, since it is smaller than the sum of its proper divisors (12791248647028).

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

11111042255420 is a wasteful number, since it uses less digits than its factorization.

11111042255420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13550051581 (or 13550051579 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

Adding to 11111042255420 its reverse (2455224011111), we get a palindrome (13566266266531).

The spelling of 11111042255420 in words is "eleven trillion, one hundred eleven billion, forty-two million, two hundred fifty-five thousand, four hundred twenty".