20144434130 has 8 divisors (see below), whose sum is σ = 36259981452. Its totient is φ = 8057773648.

The previous prime is 20144434129. The next prime is 20144434147. The reversal of 20144434130 is 3143444102.

It can be written as a sum of positive squares in 2 ways, for example, as 20010082849 + 134351281 = 141457^2 + 11591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20144434130.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007221697 + ... + 1007221716.

Almost surely, 2^20144434130 is an apocalyptic number.

20144434130 is a deficient number, since it is larger than the sum of its proper divisors (16115547322).

20144434130 is a wasteful number, since it uses less digits than its factorization.

20144434130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014443420.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20144434130 its reverse (3143444102), we get a palindrome (23287878232).

The spelling of 20144434130 in words is "twenty billion, one hundred forty-four million, four hundred thirty-four thousand, one hundred thirty".