20111133021030 has 48 divisors (see below), whose sum is σ = 52292607559920. Its totient is φ = 5362593246144.

The previous prime is 20111133021013. The next prime is 20111133021059. The reversal of 20111133021030 is 3012033111102.

20111133021030 is a `hidden beast` number, since 201 + 111 + 330 + 21 + 0 + 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 = 20111133020994 and 20111133021012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6530640 + ... + 9103379.

It is an arithmetic number, because the mean of its divisors is an integer number (1089429324165).

Almost surely, 2^{20111133021030} is an apocalyptic number.

20111133021030 is an abundant number, since it is smaller than the sum of its proper divisors (32181474538890).

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

20111133021030 is a wasteful number, since it uses less digits than its factorization.

20111133021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15648325 (or 15648322 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20111133021030 its reverse (3012033111102), we get a palindrome (23123166132132).

The spelling of 20111133021030 in words is "twenty trillion, one hundred eleven billion, one hundred thirty-three million, twenty-one thousand, thirty".