20401143032 has 32 divisors (see below), whose sum is σ = 38736003600. Its totient is φ = 10071688704.

The previous prime is 20401143023. The next prime is 20401143047. The reversal of 20401143032 is 23034110402.

It is a junction number, because it is equal to n+sod(n) for n = 20401142995 and 20401143013.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 1238144 + ... + 1254512.

Almost surely, 2^20401143032 is an apocalyptic number.

It is an amenable number.

20401143032 is a deficient number, since it is larger than the sum of its proper divisors (18334860568).

20401143032 is a wasteful number, since it uses less digits than its factorization.

20401143032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18335 (or 18331 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20401143032 its reverse (23034110402), we get a palindrome (43435253434).

The spelling of 20401143032 in words is "twenty billion, four hundred one million, one hundred forty-three thousand, thirty-two".