20340401022100 has 18 divisors (see below), whose sum is σ = 44138670218174. Its totient is φ = 8136160408800.

The previous prime is 20340401022091. The next prime is 20340401022131. The reversal of 20340401022100 is 122010404302.

It can be written as a sum of positive squares in 3 ways, for example, as 6835746204676 + 13504654817424 = 2614526^2 + 3674868^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101702005011 + ... + 101702005210.

Almost surely, 2^{20340401022100} is an apocalyptic number.

20340401022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20340401022100 is an abundant number, since it is smaller than the sum of its proper divisors (23798269196074).

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

20340401022100 is a wasteful number, since it uses less digits than its factorization.

20340401022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203404010235 (or 203404010228 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20340401022100 its reverse (122010404302), we get a palindrome (20462411426402).

The spelling of 20340401022100 in words is "twenty trillion, three hundred forty billion, four hundred one million, twenty-two thousand, one hundred".