331121100131323 has 4 divisors (see below), whose sum is σ = 335657005612648. Its totient is φ = 326585194650000.

The previous prime is 331121100131287. The next prime is 331121100131389. The reversal of 331121100131323 is 323131001121133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331121100131323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331121100431323) 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, 2267952740553 + ... + 2267952740698.

It is an arithmetic number, because the mean of its divisors is an integer number (83914251403162).

Almost surely, 2^{331121100131323} is an apocalyptic number.

331121100131323 is a deficient number, since it is larger than the sum of its proper divisors (4535905481325).

331121100131323 is an equidigital number, since it uses as much as digits as its factorization.

331121100131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535905481324.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 331121100131323 its reverse (323131001121133), we get a palindrome (654252101252456).

The spelling of 331121100131323 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, one hundred million, one hundred thirty-one thousand, three hundred twenty-three".