1131331022320 has 40 divisors (see below), whose sum is σ = 2630393545824. Its totient is φ = 452523992832.

The previous prime is 1131331022309. The next prime is 1131331022357. The reversal of 1131331022320 is 232201331311.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1131331022291 and 1131331022300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5935542 + ... + 6123178.

Almost surely, 2^{1131331022320} is an apocalyptic number.

1131331022320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131331022320 is an abundant number, since it is smaller than the sum of its proper divisors (1499062523504).

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

1131331022320 is a wasteful number, since it uses less digits than its factorization.

1131331022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263017 (or 263011 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1131331022320 its reverse (232201331311), we get a palindrome (1363532353631).

The spelling of 1131331022320 in words is "one trillion, one hundred thirty-one billion, three hundred thirty-one million, twenty-two thousand, three hundred twenty".