31003003013321 has 8 divisors (see below), whose sum is σ = 31376639546784. Its totient is φ = 30629369012800.

The previous prime is 31003003013197. The next prime is 31003003013347. The reversal of 31003003013321 is 12331030030013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31003003013321 - 2¹⁰ = 31003003012297 is a prime.

It is a super-2 number, since 2×31003003013321² (a number of 28 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 = 31003003013293 and 31003003013302.

It is not an unprimeable number, because it can be changed into a prime (31003003013821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38415665 + ... + 39214401.

It is an arithmetic number, because the mean of its divisors is an integer number (3922079943348).

Almost surely, 2^{31003003013321} is an apocalyptic number.

It is an amenable number.

31003003013321 is a deficient number, since it is larger than the sum of its proper divisors (373636533463).

31003003013321 is an equidigital number, since it uses as much as digits as its factorization.

31003003013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266471.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31003003013321 its reverse (12331030030013), we get a palindrome (43334033043334).

The spelling of 31003003013321 in words is "thirty-one trillion, three billion, three million, thirteen thousand, three hundred twenty-one".