1011123444 has 24 divisors (see below), whose sum is σ = 2360404480. Its totient is φ = 336881664.

The previous prime is 1011123403. The next prime is 1011123461. The reversal of 1011123444 is 4443211101.

It is a super-2 number, since 2×1011123444² = 2044741238012842272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1011123444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8052 + ... + 45684.

Almost surely, 2^1011123444 is an apocalyptic number.

It is an amenable number.

1011123444 is an abundant number, since it is smaller than the sum of its proper divisors (1349281036).

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

1011123444 is a wasteful number, since it uses less digits than its factorization.

1011123444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39879 (or 39877 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1011123444 is about 31798.1673056797. The cubic root of 1011123444 is about 1003.6941511099.

Adding to 1011123444 its reverse (4443211101), we get a palindrome (5454334545).

The spelling of 1011123444 in words is "one billion, eleven million, one hundred twenty-three thousand, four hundred forty-four".