21113231133030 has 16 divisors (see below), whose sum is σ = 50671754719344. Its totient is φ = 5630194968800.

The previous prime is 21113231132999. The next prime is 21113231133031. The reversal of 21113231133030 is 3033113231112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113231133031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351887185521 + ... + 351887185580.

It is an arithmetic number, because the mean of its divisors is an integer number (3166984669959).

Almost surely, 2^{21113231133030} is an apocalyptic number.

21113231133030 is an abundant number, since it is smaller than the sum of its proper divisors (29558523586314).

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

21113231133030 is a wasteful number, since it uses less digits than its factorization.

21113231133030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703774371111.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 21113231133030 its reverse (3033113231112), we get a palindrome (24146344364142).

The spelling of 21113231133030 in words is "twenty-one trillion, one hundred thirteen billion, two hundred thirty-one million, one hundred thirty-three thousand, thirty".