11111031213030 has 384 divisors, whose sum is σ = 34898831824896. Its totient is φ = 2397821184000.

The previous prime is 11111031213019. The next prime is 11111031213049. The reversal of 11111031213030 is 3031213011111.

11111031213030 is a `hidden beast` number, since 111 + 110 + 312 + 130 + 3 + 0 = 666.

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 = 11111031212994 and 11111031213012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 484403722 + ... + 484426658.

It is an arithmetic number, because the mean of its divisors is an integer number (90882374544).

Almost surely, 2^{11111031213030} is an apocalyptic number.

11111031213030 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 11111031213030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17449415912448).

11111031213030 is an abundant number, since it is smaller than the sum of its proper divisors (23787800611866).

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

11111031213030 is a wasteful number, since it uses less digits than its factorization.

11111031213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23412 (or 23409 counting only the distinct ones).

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

Adding to 11111031213030 its reverse (3031213011111), we get a palindrome (14142244224141).

The spelling of 11111031213030 in words is "eleven trillion, one hundred eleven billion, thirty-one million, two hundred thirteen thousand, thirty".