111240020441 has 16 divisors (see below), whose sum is σ = 122745647808. Its totient is φ = 99969672000.

The previous prime is 111240020431. The next prime is 111240020449. The reversal of 111240020441 is 144020042111.

It is not a de Polignac number, because 111240020441 - 2¹⁰ = 111240019417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111240020449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636515 + ... + 792231.

It is an arithmetic number, because the mean of its divisors is an integer number (7671602988).

Almost surely, 2^111240020441 is an apocalyptic number.

111240020441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111240020441 is a deficient number, since it is larger than the sum of its proper divisors (11505627367).

111240020441 is a wasteful number, since it uses less digits than its factorization.

111240020441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156472.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111240020441 its reverse (144020042111), we get a palindrome (255260062552).

The spelling of 111240020441 in words is "one hundred eleven billion, two hundred forty million, twenty thousand, four hundred forty-one".