10001331012 has 24 divisors (see below), whose sum is σ = 23617603296. Its totient is φ = 3293610688.

The previous prime is 10001331001. The next prime is 10001331031. The reversal of 10001331012 is 21013310001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5019753 + ... + 5021744.

It is an arithmetic number, because the mean of its divisors is an integer number (984066804).

Almost surely, 2^10001331012 is an apocalyptic number.

10001331012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10001331012 is an abundant number, since it is smaller than the sum of its proper divisors (13616272284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10001331012 is a wasteful number, since it uses less digits than its factorization.

10001331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041587 (or 10041585 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 10001331012 its reverse (21013310001), we get a palindrome (31014641013).

The spelling of 10001331012 in words is "ten billion, one million, three hundred thirty-one thousand, twelve".