111001043124 has 36 divisors (see below), whose sum is σ = 280863047556. Its totient is φ = 36963810048.

The previous prime is 111001043123. The next prime is 111001043137. The reversal of 111001043124 is 421340100111.

It can be written as a sum of positive squares in 2 ways, for example, as 2706080400 + 108294962724 = 52020^2 + 329082^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×111001043124² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111001043097 and 111001043106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001043123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1485429 + ... + 1558364.

It is an arithmetic number, because the mean of its divisors is an integer number (7801751321).

Almost surely, 2^111001043124 is an apocalyptic number.

It is an amenable number.

111001043124 is an abundant number, since it is smaller than the sum of its proper divisors (169862004432).

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

111001043124 is a wasteful number, since it uses less digits than its factorization.

111001043124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044816 (or 3044811 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111001043124 its reverse (421340100111), we get a palindrome (532341143235).

The spelling of 111001043124 in words is "one hundred eleven billion, one million, forty-three thousand, one hundred twenty-four".