133221312003 has 24 divisors (see below), whose sum is σ = 192664742400. Its totient is φ = 81845293920.

The previous prime is 133221311989. The next prime is 133221312023. The reversal of 133221312003 is 300213122331.

It is not a de Polignac number, because 133221312003 - 2¹⁰ = 133221310979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133221312023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84358 + ... + 523028.

It is an arithmetic number, because the mean of its divisors is an integer number (8027697600).

Almost surely, 2^133221312003 is an apocalyptic number.

133221312003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133221312003 is a deficient number, since it is larger than the sum of its proper divisors (59443430397).

133221312003 is a wasteful number, since it uses less digits than its factorization.

133221312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439299 (or 439286 counting only the distinct ones).

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

Adding to 133221312003 its reverse (300213122331), we get a palindrome (433434434334).

The spelling of 133221312003 in words is "one hundred thirty-three billion, two hundred twenty-one million, three hundred twelve thousand, three".