312012001322 has 16 divisors (see below), whose sum is σ = 547316734272. Its totient is φ = 130609674720.

The previous prime is 312012001321. The next prime is 312012001331. The reversal of 312012001322 is 223100210213.

It is a self number, because there is not a number n which added to its sum of digits gives 312012001322.

It is not an unprimeable number, because it can be changed into a prime (312012001321) 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, 259145579 + ... + 259146782.

It is an arithmetic number, because the mean of its divisors is an integer number (34207295892).

Almost surely, 2^312012001322 is an apocalyptic number.

312012001322 is a deficient number, since it is larger than the sum of its proper divisors (235304732950).

312012001322 is a wasteful number, since it uses less digits than its factorization.

312012001322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518292413.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 312012001322 its reverse (223100210213), we get a palindrome (535112211535).

The spelling of 312012001322 in words is "three hundred twelve billion, twelve million, one thousand, three hundred twenty-two".