312231331103 has 4 divisors (see below), whose sum is σ = 312234222288. Its totient is φ = 312228439920.

The previous prime is 312231331057. The next prime is 312231331171. The reversal of 312231331103 is 301133132213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301133132213 = 52267 ⋅5761439.

It is a cyclic number.

It is not a de Polignac number, because 312231331103 - 2¹⁰ = 312231330079 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 (312231333103) 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, 1277051 + ... + 1501772.

It is an arithmetic number, because the mean of its divisors is an integer number (78058555572).

Almost surely, 2^312231331103 is an apocalyptic number.

312231331103 is a deficient number, since it is larger than the sum of its proper divisors (2891185).

312231331103 is a wasteful number, since it uses less digits than its factorization.

312231331103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891184.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 312231331103 its reverse (301133132213), we get a palindrome (613364463316).

The spelling of 312231331103 in words is "three hundred twelve billion, two hundred thirty-one million, three hundred thirty-one thousand, one hundred three".