20113211020032 has 216 divisors, whose sum is σ = 62724957094800. Its totient is φ = 6161653407744.

The previous prime is 20113211019971. The next prime is 20113211020033. The reversal of 20113211020032 is 23002011231102.

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 = 20113211019987 and 20113211020014.

It is not an unprimeable number, because it can be changed into a prime (20113211020033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5392819 + ... + 8325197.

Almost surely, 2^{20113211020032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20113211020032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31362478547400).

20113211020032 is an abundant number, since it is smaller than the sum of its proper divisors (42611746074768).

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

20113211020032 is a wasteful number, since it uses less digits than its factorization.

20113211020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932643 (or 2932626 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20113211020032 its reverse (23002011231102), we get a palindrome (43115222251134).

The spelling of 20113211020032 in words is "twenty trillion, one hundred thirteen billion, two hundred eleven million, twenty thousand, thirty-two".