11213020044 has 72 divisors (see below), whose sum is σ = 29938900992. Its totient is φ = 3532969440.

The previous prime is 11213020019. The next prime is 11213020127. The reversal of 11213020044 is 44002031211.

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 = 11213019999 and 11213020026.

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, 68844 + ... + 164819.

Almost surely, 2^11213020044 is an apocalyptic number.

It is an amenable number.

11213020044 is an abundant number, since it is smaller than the sum of its proper divisors (18725880948).

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

11213020044 is a wasteful number, since it uses less digits than its factorization.

11213020044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233747 (or 233742 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11213020044 its reverse (44002031211), we get a palindrome (55215051255).

The spelling of 11213020044 in words is "eleven billion, two hundred thirteen million, twenty thousand, forty-four".