11030231211020 has 384 divisors, whose sum is σ = 29578679746560. Its totient is φ = 3368238612480.

The previous prime is 11030231211011. The next prime is 11030231211053. The reversal of 11030231211020 is 2011213203011.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 11030231211020.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 727532240 + ... + 727547400.

It is an arithmetic number, because the mean of its divisors is an integer number (77027811840).

Almost surely, 2^{11030231211020} is an apocalyptic number.

11030231211020 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 11030231211020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14789339873280).

11030231211020 is an abundant number, since it is smaller than the sum of its proper divisors (18548448535540).

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

11030231211020 is a wasteful number, since it uses less digits than its factorization.

11030231211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15433 (or 15431 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11030231211020 its reverse (2011213203011), we get a palindrome (13041444414031).

The spelling of 11030231211020 in words is "eleven trillion, thirty billion, two hundred thirty-one million, two hundred eleven thousand, twenty".