1130313131220 has 192 divisors, whose sum is σ = 3918284858880. Its totient is φ = 238483454976.

The previous prime is 1130313131111. The next prime is 1130313131267. The reversal of 1130313131220 is 221313130311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 310264 + ... + 1535216.

It is an arithmetic number, because the mean of its divisors is an integer number (20407733640).

Almost surely, 2^{1130313131220} is an apocalyptic number.

1130313131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1130313131220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1959142429440).

1130313131220 is an abundant number, since it is smaller than the sum of its proper divisors (2787971727660).

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

1130313131220 is a wasteful number, since it uses less digits than its factorization.

1130313131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225011 (or 1224983 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1130313131220 its reverse (221313130311), we get a palindrome (1351626261531).

Subtracting from 1130313131220 its reverse (221313130311), we obtain a palindrome (909000000909).

The spelling of 1130313131220 in words is "one trillion, one hundred thirty billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred twenty".