21003131010010 has 16 divisors (see below), whose sum is σ = 37874750335776. Its totient is φ = 8385893622288.

The previous prime is 21003131010007. The next prime is 21003131010011. The reversal of 21003131010010 is 1001013130012.

It is a super-2 number, since 2×21003131010010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21003131010011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1919841972 + ... + 1919852911.

It is an arithmetic number, because the mean of its divisors is an integer number (2367171895986).

Almost surely, 2^{21003131010010} is an apocalyptic number.

21003131010010 is a deficient number, since it is larger than the sum of its proper divisors (16871619325766).

21003131010010 is a wasteful number, since it uses less digits than its factorization.

21003131010010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839695437.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 21003131010010 its reverse (1001013130012), we get a palindrome (22004144140022).

The spelling of 21003131010010 in words is "twenty-one trillion, three billion, one hundred thirty-one million, ten thousand, ten".