312232121303 has 4 divisors (see below), whose sum is σ = 322304125248. Its totient is φ = 302160117360.

The previous prime is 312232121287. The next prime is 312232121339. The reversal of 312232121303 is 303121232213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303121232213 = 62417 ⋅4856389.

It is not a de Polignac number, because 312232121303 - 2⁴ = 312232121287 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 (312232121503) 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, 5036001926 + ... + 5036001987.

It is an arithmetic number, because the mean of its divisors is an integer number (80576031312).

Almost surely, 2^312232121303 is an apocalyptic number.

312232121303 is a deficient number, since it is larger than the sum of its proper divisors (10072003945).

312232121303 is a wasteful number, since it uses less digits than its factorization.

312232121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10072003944.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 312232121303 its reverse (303121232213), we get a palindrome (615353353516).

The spelling of 312232121303 in words is "three hundred twelve billion, two hundred thirty-two million, one hundred twenty-one thousand, three hundred three".