20011022031000 has 2048 divisors, whose sum is σ = 89660947783680. Its totient is φ = 3575808000000.

The previous prime is 20011022030999. The next prime is 20011022031001. The reversal of 20011022031000 is 13022011002.

It is an interprime number because it is at equal distance from previous prime (20011022030999) and next prime (20011022031001).

It is a super-2 number, since 2×20011022031000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011022031001) by changing a digit.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 5156149060 + ... + 5156152940.

It is an arithmetic number, because the mean of its divisors is an integer number (43779759660).

Almost surely, 2^{20011022031000} is an apocalyptic number.

20011022031000 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 20011022031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44830473891840).

20011022031000 is an abundant number, since it is smaller than the sum of its proper divisors (69649925752680).

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

20011022031000 is a wasteful number, since it uses less digits than its factorization.

20011022031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054 (or 4040 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20011022031000 its reverse (13022011002), we get a palindrome (20024044042002).

The spelling of 20011022031000 in words is "twenty trillion, eleven billion, twenty-two million, thirty-one thousand".