1131311112030 has 48 divisors (see below), whose sum is σ = 3208809702384. Its totient is φ = 274257239040.

The previous prime is 1131311111929. The next prime is 1131311112031. The reversal of 1131311112030 is 302111131311.

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

It is a junction number, because it is equal to n+sod(n) for n = 1131311111994 and 1131311112012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131311112031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 571368259 + ... + 571370238.

It is an arithmetic number, because the mean of its divisors is an integer number (66850202133).

Almost surely, 2^{1131311112030} is an apocalyptic number.

1131311112030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131311112030 is an abundant number, since it is smaller than the sum of its proper divisors (2077498590354).

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

1131311112030 is a wasteful number, since it uses less digits than its factorization.

1131311112030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142738521 (or 1142738518 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1131311112030 its reverse (302111131311), we get a palindrome (1433422243341).

The spelling of 1131311112030 in words is "one trillion, one hundred thirty-one billion, three hundred eleven million, one hundred twelve thousand, thirty".