1131031120230 has 192 divisors, whose sum is σ = 3319277169600. Its totient is φ = 273852057600.

The previous prime is 1131031120213. The next prime is 1131031120237. The reversal of 1131031120230 is 320211301311.

1131031120230 is a `hidden beast` number, since 1 + 1 + 310 + 3 + 1 + 120 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131031120237) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27062550 + ... + 27104310.

It is an arithmetic number, because the mean of its divisors is an integer number (17287901925).

Almost surely, 2^{1131031120230} is an apocalyptic number.

1131031120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131031120230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1659638584800).

1131031120230 is an abundant number, since it is smaller than the sum of its proper divisors (2188246049370).

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

1131031120230 is a wasteful number, since it uses less digits than its factorization.

1131031120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42628 (or 42611 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1131031120230 its reverse (320211301311), we get a palindrome (1451242421541).

The spelling of 1131031120230 in words is "one trillion, one hundred thirty-one billion, thirty-one million, one hundred twenty thousand, two hundred thirty".