312132213011 has 16 divisors (see below), whose sum is σ = 323366307840. Its totient is φ = 300929909280.

The previous prime is 312132212999. The next prime is 312132213031. The reversal of 312132213011 is 110312231213.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312132213011 is a prime.

It is a super-2 number, since 2×312132213011² (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 (312132213031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91613270 + ... + 91616676.

It is an arithmetic number, because the mean of its divisors is an integer number (20210394240).

Almost surely, 2^312132213011 is an apocalyptic number.

312132213011 is a deficient number, since it is larger than the sum of its proper divisors (11234094829).

312132213011 is a wasteful number, since it uses less digits than its factorization.

312132213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312132213011 its reverse (110312231213), we get a palindrome (422444444224).

The spelling of 312132213011 in words is "three hundred twelve billion, one hundred thirty-two million, two hundred thirteen thousand, eleven".