20302131122000 has 320 divisors, whose sum is σ = 60440901201408. Its totient is φ = 6422976000000.

The previous prime is 20302131121991. The next prime is 20302131122003. The reversal of 20302131122000 is 22113120302.

It is a self number, because there is not a number n which added to its sum of digits gives 20302131122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302131122003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 546163415 + ... + 546200585.

Almost surely, 2^{20302131122000} is an apocalyptic number.

20302131122000 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 20302131122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30220450600704).

20302131122000 is an abundant number, since it is smaller than the sum of its proper divisors (40138770079408).

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

20302131122000 is a wasteful number, since it uses less digits than its factorization.

20302131122000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40215 (or 40199 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20302131122000 its reverse (22113120302), we get a palindrome (20324244242302).

The spelling of 20302131122000 in words is "twenty trillion, three hundred two billion, one hundred thirty-one million, one hundred twenty-two thousand".