133311123220331 has 16 divisors (see below), whose sum is σ = 152536253510400. Its totient is φ = 114131169760608.

The previous prime is 133311123220321. The next prime is 133311123220333. The reversal of 133311123220331 is 133022321113331.

It is a de Polignac number, because none of the positive numbers 2^k-133311123220331 is a prime.

It is a super-2 number, since 2×133311123220331² (a number of 29 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 = 133311123220294 and 133311123220303.

It is not an unprimeable number, because it can be changed into a prime (133311123220333) 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, 308966861 + ... + 309398033.

It is an arithmetic number, because the mean of its divisors is an integer number (9533515844400).

Almost surely, 2^{133311123220331} is an apocalyptic number.

133311123220331 is a deficient number, since it is larger than the sum of its proper divisors (19225130290069).

133311123220331 is an equidigital number, since it uses as much as digits as its factorization.

133311123220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483458.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 133311123220331 its reverse (133022321113331), we get a palindrome (266333444333662).

The spelling of 133311123220331 in words is "one hundred thirty-three trillion, three hundred eleven billion, one hundred twenty-three million, two hundred twenty thousand, three hundred thirty-one".