1003213023231 has 4 divisors (see below), whose sum is σ = 1337617364312. Its totient is φ = 668808682152.

The previous prime is 1003213023199. The next prime is 1003213023287. The reversal of 1003213023231 is 1323203123001.

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

It is not a de Polignac number, because 1003213023231 - 2⁵ = 1003213023199 is a prime.

It is a super-2 number, since 2×1003213023231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003213023198 and 1003213023207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003213023031) 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, 167202170536 + ... + 167202170541.

It is an arithmetic number, because the mean of its divisors is an integer number (334404341078).

Almost surely, 2^{1003213023231} is an apocalyptic number.

1003213023231 is a deficient number, since it is larger than the sum of its proper divisors (334404341081).

1003213023231 is an equidigital number, since it uses as much as digits as its factorization.

1003213023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334404341080.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1003213023231 its reverse (1323203123001), we get a palindrome (2326416146232).

The spelling of 1003213023231 in words is "one trillion, three billion, two hundred thirteen million, twenty-three thousand, two hundred thirty-one".