20113231302000 has 480 divisors, whose sum is σ = 72223611393024. Its totient is φ = 5213058048000.

The previous prime is 20113231301993. The next prime is 20113231302011. The reversal of 20113231302000 is 20313231102.

20113231302000 is a `hidden beast` number, since 2 + 0 + 11 + 323 + 130 + 200 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 650666545 + ... + 650697455.

Almost surely, 2^{20113231302000} is an apocalyptic number.

20113231302000 is a gapful number since it is divisible by the number (20) 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 20113231302000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36111805696512).

20113231302000 is an abundant number, since it is smaller than the sum of its proper divisors (52110380091024).

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

20113231302000 is a wasteful number, since it uses less digits than its factorization.

20113231302000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31954 (or 31935 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20113231302000 its reverse (20313231102), we get a palindrome (20133544533102).

The spelling of 20113231302000 in words is "twenty trillion, one hundred thirteen billion, two hundred thirty-one million, three hundred two thousand".