2011321223230 has 64 divisors (see below), whose sum is σ = 3955615119360. Its totient is φ = 730258547200.

The previous prime is 2011321223059. The next prime is 2011321223287. The reversal of 2011321223230 is 323221231102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401538966 + ... + 401543974.

It is an arithmetic number, because the mean of its divisors is an integer number (61806486240).

Almost surely, 2^{2011321223230} is an apocalyptic number.

2011321223230 is a deficient number, since it is larger than the sum of its proper divisors (1944293896130).

2011321223230 is a wasteful number, since it uses less digits than its factorization.

2011321223230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9945.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2011321223230 its reverse (323221231102), we get a palindrome (2334542454332).

The spelling of 2011321223230 in words is "two trillion, eleven billion, three hundred twenty-one million, two hundred twenty-three thousand, two hundred thirty".