20011142432 has 12 divisors (see below), whose sum is σ = 39396936726. Its totient is φ = 10005571200.

The previous prime is 20011142429. The next prime is 20011142441. The reversal of 20011142432 is 23424111002.

It can be written as a sum of positive squares in only one way, i.e., 18342910096 + 1668232336 = 135436^2 + 40844^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312674069 + ... + 312674132.

Almost surely, 2^20011142432 is an apocalyptic number.

It is an amenable number.

20011142432 is a deficient number, since it is larger than the sum of its proper divisors (19385794294).

20011142432 is an equidigital number, since it uses as much as digits as its factorization.

20011142432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625348211 (or 625348203 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20011142432 its reverse (23424111002), we get a palindrome (43435253434).

The spelling of 20011142432 in words is "twenty billion, eleven million, one hundred forty-two thousand, four hundred thirty-two".