20340201144 has 32 divisors (see below), whose sum is σ = 51108639120. Its totient is φ = 6745648896.

The previous prime is 20340201137. The next prime is 20340201199. The reversal of 20340201144 is 44110204302.

It is a self number, because there is not a number n which added to its sum of digits gives 20340201144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2146309 + ... + 2155764.

Almost surely, 2^20340201144 is an apocalyptic number.

20340201144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20340201144 is an abundant number, since it is smaller than the sum of its proper divisors (30768437976).

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

20340201144 is a wasteful number, since it uses less digits than its factorization.

20340201144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302279 (or 4302275 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20340201144 its reverse (44110204302), we get a palindrome (64450405446).

The spelling of 20340201144 in words is "twenty billion, three hundred forty million, two hundred one thousand, one hundred forty-four".