1131222402320 has 40 divisors (see below), whose sum is σ = 2631861085824. Its totient is φ = 452184616832.

The previous prime is 1131222402311. The next prime is 1131222402337. The reversal of 1131222402320 is 232042221311.

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

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 7 ways as a sum of consecutive naturals, for example, 4635674 + ... + 4873593.

Almost surely, 2^{1131222402320} is an apocalyptic number.

1131222402320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131222402320 is an abundant number, since it is smaller than the sum of its proper divisors (1500638683504).

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

1131222402320 is a wasteful number, since it uses less digits than its factorization.

1131222402320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9510767 (or 9510761 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1131222402320 its reverse (232042221311), we get a palindrome (1363264623631).

The spelling of 1131222402320 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-two million, four hundred two thousand, three hundred twenty".