1123111011020 has 24 divisors (see below), whose sum is σ = 2358633357024. Its totient is φ = 449225312256.

The previous prime is 1123111010993. The next prime is 1123111011053. The reversal of 1123111011020 is 201101113211.

It is a super-2 number, since 2×1123111011020² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123111010986 and 1123111011004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706037 + ... + 1656716.

It is an arithmetic number, because the mean of its divisors is an integer number (98276389876).

Almost surely, 2^{1123111011020} is an apocalyptic number.

1123111011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123111011020 is an abundant number, since it is smaller than the sum of its proper divisors (1235522346004).

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

1123111011020 is a wasteful number, since it uses less digits than its factorization.

1123111011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386529 (or 2386527 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1123111011020 its reverse (201101113211), we get a palindrome (1324212124231).

The spelling of 1123111011020 in words is "one trillion, one hundred twenty-three billion, one hundred eleven million, eleven thousand, twenty".