320121331033133 has 16 divisors (see below), whose sum is σ = 401852210257920. Its totient is φ = 248646055092336.

The previous prime is 320121331033067. The next prime is 320121331033183. The reversal of 320121331033133 is 331330133121023.

It is a de Polignac number, because none of the positive numbers 2^k-320121331033133 is a prime.

It is a super-2 number, since 2×320121331033133² (a number of 30 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 = 320121331033096 and 320121331033105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320121331033183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52324503485 + ... + 52324509602.

It is an arithmetic number, because the mean of its divisors is an integer number (25115763141120).

Almost surely, 2^{320121331033133} is an apocalyptic number.

It is an amenable number.

320121331033133 is a deficient number, since it is larger than the sum of its proper divisors (81730879224787).

320121331033133 is a wasteful number, since it uses less digits than its factorization.

320121331033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104649013136.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 320121331033133 its reverse (331330133121023), we get a palindrome (651451464154156).

The spelling of 320121331033133 in words is "three hundred twenty trillion, one hundred twenty-one billion, three hundred thirty-one million, thirty-three thousand, one hundred thirty-three".