1131110120320 has 64 divisors (see below), whose sum is σ = 2723514015600. Its totient is φ = 449189019648.

The previous prime is 1131110120291. The next prime is 1131110120323. The reversal of 1131110120320 is 230210111311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1131110120294 and 1131110120303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131110120323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6268449 + ... + 6446368.

Almost surely, 2^{1131110120320} is an apocalyptic number.

1131110120320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131110120320 is an abundant number, since it is smaller than the sum of its proper divisors (1592403895280).

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

1131110120320 is a wasteful number, since it uses less digits than its factorization.

1131110120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12714975 (or 12714963 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1131110120320 its reverse (230210111311), we get a palindrome (1361320231631).

Subtracting from 1131110120320 its reverse (230210111311), we obtain a palindrome (900900009009).

The spelling of 1131110120320 in words is "one trillion, one hundred thirty-one billion, one hundred ten million, one hundred twenty thousand, three hundred twenty".