1131131301020 has 48 divisors (see below), whose sum is σ = 2714813508288. Its totient is φ = 387802391040.

The previous prime is 1131131300989. The next prime is 1131131301043. The reversal of 1131131301020 is 201031311311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131131301020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4186754 + ... + 4448726.

It is an arithmetic number, because the mean of its divisors is an integer number (56558614756).

Almost surely, 2^{1131131301020} is an apocalyptic number.

1131131301020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131131301020 is an abundant number, since it is smaller than the sum of its proper divisors (1583682207268).

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

1131131301020 is a wasteful number, since it uses less digits than its factorization.

1131131301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292830 (or 292828 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1131131301020 its reverse (201031311311), we get a palindrome (1332162612331).

The spelling of 1131131301020 in words is "one trillion, one hundred thirty-one billion, one hundred thirty-one million, three hundred one thousand, twenty".