20001311032 has 8 divisors (see below), whose sum is σ = 37502458200. Its totient is φ = 10000655512.

The previous prime is 20001311009. The next prime is 20001311069. The reversal of 20001311032 is 23011310002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250081932 + ... + 1250081947.

It is an arithmetic number, because the mean of its divisors is an integer number (4687807275).

Almost surely, 2^20001311032 is an apocalyptic number.

It is an amenable number.

20001311032 is a deficient number, since it is larger than the sum of its proper divisors (17501147168).

20001311032 is a wasteful number, since it uses less digits than its factorization.

20001311032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500163885 (or 2500163881 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20001311032 its reverse (23011310002), we get a palindrome (43012621034).

The spelling of 20001311032 in words is "twenty billion, one million, three hundred eleven thousand, thirty-two".