1131024204220 has 12 divisors (see below), whose sum is σ = 2375150828904. Its totient is φ = 452409681680.

The previous prime is 1131024204161. The next prime is 1131024204221. The reversal of 1131024204220 is 224024201311.

It is a junction number, because it is equal to n+sod(n) for n = 1131024204191 and 1131024204200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131024204221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28275605086 + ... + 28275605125.

It is an arithmetic number, because the mean of its divisors is an integer number (197929235742).

Almost surely, 2^{1131024204220} is an apocalyptic number.

1131024204220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131024204220 is an abundant number, since it is smaller than the sum of its proper divisors (1244126624684).

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

1131024204220 is a wasteful number, since it uses less digits than its factorization.

1131024204220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56551210220 (or 56551210218 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1131024204220 its reverse (224024201311), we get a palindrome (1355048405531).

The spelling of 1131024204220 in words is "one trillion, one hundred thirty-one billion, twenty-four million, two hundred four thousand, two hundred twenty".