331220012003 has 12 divisors (see below), whose sum is σ = 335446889400. Its totient is φ = 327044293632.

The previous prime is 331220011981. The next prime is 331220012021. The reversal of 331220012003 is 300210022133.

It is not a de Polignac number, because 331220012003 - 2²⁶ = 331152903139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331220012303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4033448 + ... + 4114746.

It is an arithmetic number, because the mean of its divisors is an integer number (27953907450).

Almost surely, 2^331220012003 is an apocalyptic number.

331220012003 is a deficient number, since it is larger than the sum of its proper divisors (4226877397).

331220012003 is an frugal number, since it uses more digits than its factorization.

331220012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81926 (or 81829 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 331220012003 its reverse (300210022133), we get a palindrome (631430034136).

The spelling of 331220012003 in words is "three hundred thirty-one billion, two hundred twenty million, twelve thousand, three".