312311111303 has 8 divisors (see below), whose sum is σ = 312467706672. Its totient is φ = 312154563456.

The previous prime is 312311111249. The next prime is 312311111341. The reversal of 312311111303 is 303111113213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312311111303 - 2³⁸ = 37433204359 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 (312311111393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21700676 + ... + 21715062.

It is an arithmetic number, because the mean of its divisors is an integer number (39058463334).

Almost surely, 2^312311111303 is an apocalyptic number.

312311111303 is a deficient number, since it is larger than the sum of its proper divisors (156595369).

312311111303 is a wasteful number, since it uses less digits than its factorization.

312311111303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23761.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 312311111303 its reverse (303111113213), we get a palindrome (615422224516).

The spelling of 312311111303 in words is "three hundred twelve billion, three hundred eleven million, one hundred eleven thousand, three hundred three".