1121011032120 has 128 divisors (see below), whose sum is σ = 3868920253440. Its totient is φ = 254534169600.

The previous prime is 1121011032077. The next prime is 1121011032121. The reversal of 1121011032120 is 212301101211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1121011032120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121011032121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4292157 + ... + 4545836.

It is an arithmetic number, because the mean of its divisors is an integer number (30225939480).

Almost surely, 2^{1121011032120} is an apocalyptic number.

1121011032120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121011032120 is an abundant number, since it is smaller than the sum of its proper divisors (2747909221320).

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

1121011032120 is a wasteful number, since it uses less digits than its factorization.

1121011032120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8838165 (or 8838161 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1121011032120 its reverse (212301101211), we get a palindrome (1333312133331).

The spelling of 1121011032120 in words is "one trillion, one hundred twenty-one billion, eleven million, thirty-two thousand, one hundred twenty".