1123043311000 has 64 divisors (see below), whose sum is σ = 2830069176480. Its totient is φ = 414662140800.

The previous prime is 1123043310979. The next prime is 1123043311009. The reversal of 1123043311000 is 1133403211.

It is a super-2 number, since 2×1123043311000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123043311009) 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, 43180974 + ... + 43206973.

Almost surely, 2^{1123043311000} is an apocalyptic number.

1123043311000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123043311000 is an abundant number, since it is smaller than the sum of its proper divisors (1707025865480).

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

1123043311000 is a wasteful number, since it uses less digits than its factorization.

1123043311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86387981 (or 86387967 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1123043311000 its reverse (1133403211), we get a palindrome (1124176714211).

The spelling of 1123043311000 in words is "one trillion, one hundred twenty-three billion, forty-three million, three hundred eleven thousand".