312111334501 has 16 divisors (see below), whose sum is σ = 325537597440. Its totient is φ = 298984271040.

The previous prime is 312111334481. The next prime is 312111334511. The reversal of 312111334501 is 105433111213.

It is a cyclic number.

It is not a de Polignac number, because 312111334501 - 2¹¹ = 312111332453 is a prime.

It is a super-2 number, since 2×312111334501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312111334511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362055 + ... + 869083.

It is an arithmetic number, because the mean of its divisors is an integer number (20346099840).

Almost surely, 2^312111334501 is an apocalyptic number.

It is an amenable number.

312111334501 is a deficient number, since it is larger than the sum of its proper divisors (13426262939).

312111334501 is a wasteful number, since it uses less digits than its factorization.

312111334501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507324.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 312111334501 its reverse (105433111213), we get a palindrome (417544445714).

The spelling of 312111334501 in words is "three hundred twelve billion, one hundred eleven million, three hundred thirty-four thousand, five hundred one".