20131001032 has 8 divisors (see below), whose sum is σ = 37745626950. Its totient is φ = 10065500512.

The previous prime is 20131001003. The next prime is 20131001039. The reversal of 20131001032 is 23010013102.

It can be written as a sum of positive squares in only one way, i.e., 15229040836 + 4901960196 = 123406^2 + 70014^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20131001039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258187557 + ... + 1258187572.

Almost surely, 2^20131001032 is an apocalyptic number.

It is an amenable number.

20131001032 is a deficient number, since it is larger than the sum of its proper divisors (17614625918).

20131001032 is a wasteful number, since it uses less digits than its factorization.

20131001032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516375135 (or 2516375131 counting only the distinct ones).

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

Adding to 20131001032 its reverse (23010013102), we get a palindrome (43141014134).

The spelling of 20131001032 in words is "twenty billion, one hundred thirty-one million, one thousand, thirty-two".