312442522331 has 8 divisors (see below), whose sum is σ = 315320765760. Its totient is φ = 309564493632.

The previous prime is 312442522321. The next prime is 312442522373. The reversal of 312442522331 is 133225244213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312442522331 is a prime.

It is a super-2 number, since 2×312442522331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312442522321) 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, 5480831 + ... + 5537543.

It is an arithmetic number, because the mean of its divisors is an integer number (39415095720).

Almost surely, 2^312442522331 is an apocalyptic number.

312442522331 is a deficient number, since it is larger than the sum of its proper divisors (2878243429).

312442522331 is a wasteful number, since it uses less digits than its factorization.

312442522331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107365.

The product of its digits is 34560, while the sum is 32.

Adding to 312442522331 its reverse (133225244213), we get a palindrome (445667766544).

The spelling of 312442522331 in words is "three hundred twelve billion, four hundred forty-two million, five hundred twenty-two thousand, three hundred thirty-one".