1331303223321 has 24 divisors (see below), whose sum is σ = 2066500541664. Its totient is φ = 822859931520.

The previous prime is 1331303223307. The next prime is 1331303223323. The reversal of 1331303223321 is 1233223031331.

1331303223321 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 3 + 0 + 322 + 332 + 1 = 666.

It is not a de Polignac number, because 1331303223321 - 2⁷ = 1331303223193 is a prime.

It is a super-3 number, since 3×1331303223321³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331303223323) 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, 64925035 + ... + 64945536.

It is an arithmetic number, because the mean of its divisors is an integer number (86104189236).

Almost surely, 2^{1331303223321} is an apocalyptic number.

It is an amenable number.

1331303223321 is a deficient number, since it is larger than the sum of its proper divisors (735197318343).

1331303223321 is a wasteful number, since it uses less digits than its factorization.

1331303223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129870661 (or 129870658 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1331303223321 its reverse (1233223031331), we get a palindrome (2564526254652).

The spelling of 1331303223321 in words is "one trillion, three hundred thirty-one billion, three hundred three million, two hundred twenty-three thousand, three hundred twenty-one".