20142030122440 has 48 divisors (see below), whose sum is σ = 48142239844500. Its totient is φ = 7582881924096.

The previous prime is 20142030122407. The next prime is 20142030122443. The reversal of 20142030122440 is 4422103024102.

It can be written as a sum of positive squares in 6 ways, for example, as 17565369503236 + 2576660619204 = 4191106^2 + 1605198^2 .

It is not an unprimeable number, because it can be changed into a prime (20142030122443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 871183515 + ... + 871206634.

Almost surely, 2^{20142030122440} is an apocalyptic number.

20142030122440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20142030122440 is an abundant number, since it is smaller than the sum of its proper divisors (28000209722060).

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

20142030122440 is a wasteful number, since it uses less digits than its factorization.

20142030122440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742390194 (or 1742390173 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20142030122440 its reverse (4422103024102), we get a palindrome (24564133146542).

The spelling of 20142030122440 in words is "twenty trillion, one hundred forty-two billion, thirty million, one hundred twenty-two thousand, four hundred forty".