20001021032 has 32 divisors (see below), whose sum is σ = 39411213600. Its totient is φ = 9503936064.

The previous prime is 20001021013. The next prime is 20001021097. The reversal of 20001021032 is 23012010002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772982 + ... + 798437.

It is an arithmetic number, because the mean of its divisors is an integer number (1231600425).

Almost surely, 2^20001021032 is an apocalyptic number.

It is an amenable number.

20001021032 is a deficient number, since it is larger than the sum of its proper divisors (19410192568).

20001021032 is a wasteful number, since it uses less digits than its factorization.

20001021032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571505 (or 1571501 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20001021032 its reverse (23012010002), we get a palindrome (43013031034).

The spelling of 20001021032 in words is "twenty billion, one million, twenty-one thousand, thirty-two".