11111120450 has 48 divisors (see below), whose sum is σ = 21385283040. Its totient is φ = 4292238720.

The previous prime is 11111120437. The next prime is 11111120479. The reversal of 11111120450 is 5402111111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162317 + ... + 220383.

It is an arithmetic number, because the mean of its divisors is an integer number (445526730).

Almost surely, 2^11111120450 is an apocalyptic number.

11111120450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111120450 is a deficient number, since it is larger than the sum of its proper divisors (10274162590).

11111120450 is a wasteful number, since it uses less digits than its factorization.

11111120450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58211 (or 58206 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 11111120450 its reverse (5402111111), we get a palindrome (16513231561).

The spelling of 11111120450 in words is "eleven billion, one hundred eleven million, one hundred twenty thousand, four hundred fifty".