331321110133 has 4 divisors (see below), whose sum is σ = 356807349388. Its totient is φ = 305834870880.

The previous prime is 331321110103. The next prime is 331321110179. The reversal of 331321110133 is 331011123133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331011123133 = 37643 ⋅8793431.

It can be written as a sum of positive squares in 2 ways, for example, as 28383151729 + 302937958404 = 168473^2 + 550398^2 .

It is a cyclic number.

It is not a de Polignac number, because 331321110133 - 2¹³ = 331321101941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331321110103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12743119608 + ... + 12743119633.

It is an arithmetic number, because the mean of its divisors is an integer number (89201837347).

Almost surely, 2^331321110133 is an apocalyptic number.

It is an amenable number.

331321110133 is a deficient number, since it is larger than the sum of its proper divisors (25486239255).

331321110133 is a wasteful number, since it uses less digits than its factorization.

331321110133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25486239254.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 331321110133 its reverse (331011123133), we get a palindrome (662332233266).

The spelling of 331321110133 in words is "three hundred thirty-one billion, three hundred twenty-one million, one hundred ten thousand, one hundred thirty-three".