1131322011020 has 48 divisors (see below), whose sum is σ = 2455654833408. Its totient is φ = 437352410880.

The previous prime is 1131322010999. The next prime is 1131322011067. The reversal of 1131322011020 is 201102231311.

It is a super-3 number, since 3×1131322011020³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1131322011020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735887 + ... + 1674566.

It is an arithmetic number, because the mean of its divisors is an integer number (51159475696).

Almost surely, 2^{1131322011020} is an apocalyptic number.

1131322011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131322011020 is an abundant number, since it is smaller than the sum of its proper divisors (1324332822388).

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

1131322011020 is a wasteful number, since it uses less digits than its factorization.

1131322011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411250 (or 2411248 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1131322011020 its reverse (201102231311), we get a palindrome (1332424242331).

The spelling of 1131322011020 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-two million, eleven thousand, twenty".