1003132310021 has 4 divisors (see below), whose sum is σ = 1003253630700. Its totient is φ = 1003010989344.

The previous prime is 1003132310009. The next prime is 1003132310111. The reversal of 1003132310021 is 1200132313001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 822719747521 + 180412562500 = 907039^2 + 424750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1003132310021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083132310021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60647936 + ... + 60664473.

It is an arithmetic number, because the mean of its divisors is an integer number (250813407675).

Almost surely, 2^{1003132310021} is an apocalyptic number.

It is an amenable number.

1003132310021 is a deficient number, since it is larger than the sum of its proper divisors (121320679).

1003132310021 is an equidigital number, since it uses as much as digits as its factorization.

1003132310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121320678.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1003132310021 its reverse (1200132313001), we get a palindrome (2203264623022).

The spelling of 1003132310021 in words is "one trillion, three billion, one hundred thirty-two million, three hundred ten thousand, twenty-one".