20101021232 has 20 divisors (see below), whose sum is σ = 39163308120. Its totient is φ = 9994361088.

The previous prime is 20101021229. The next prime is 20101021247. The reversal of 20101021232 is 23212010102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3506393 + ... + 3512120.

It is an arithmetic number, because the mean of its divisors is an integer number (1958165406).

Almost surely, 2^20101021232 is an apocalyptic number.

It is an amenable number.

20101021232 is a deficient number, since it is larger than the sum of its proper divisors (19062286888).

20101021232 is a wasteful number, since it uses less digits than its factorization.

20101021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7018700 (or 7018694 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20101021232 its reverse (23212010102), we get a palindrome (43313031334).

The spelling of 20101021232 in words is "twenty billion, one hundred one million, twenty-one thousand, two hundred thirty-two".