1121123113020 has 96 divisors (see below), whose sum is σ = 3488092856640. Its totient is φ = 298952939520.

The previous prime is 1121123113013. The next prime is 1121123113031. The reversal of 1121123113020 is 203113211211.

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 = 1121123112984 and 1121123113002.

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 31 ways as a sum of consecutive naturals, for example, 21704344 + ... + 21755936.

It is an arithmetic number, because the mean of its divisors is an integer number (36334300590).

Almost surely, 2^{1121123113020} is an apocalyptic number.

1121123113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121123113020 is an abundant number, since it is smaller than the sum of its proper divisors (2366969743620).

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

1121123113020 is a wasteful number, since it uses less digits than its factorization.

1121123113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91852 (or 91844 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1121123113020 its reverse (203113211211), we get a palindrome (1324236324231).

The spelling of 1121123113020 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-three million, one hundred thirteen thousand, twenty".