201321002312 has 16 divisors (see below), whose sum is σ = 390493323900. Its totient is φ = 97189449280.

The previous prime is 201321002299. The next prime is 201321002329. The reversal of 201321002312 is 213200123102.

It can be written as a sum of positive squares in 2 ways, for example, as 191926352836 + 9394649476 = 438094^2 + 96926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433881239 + ... + 433881702.

Almost surely, 2^201321002312 is an apocalyptic number.

It is an amenable number.

201321002312 is a deficient number, since it is larger than the sum of its proper divisors (189172321588).

201321002312 is a wasteful number, since it uses less digits than its factorization.

201321002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867762976 (or 867762972 counting only the distinct ones).

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

Adding to 201321002312 its reverse (213200123102), we get a palindrome (414521125414).

The spelling of 201321002312 in words is "two hundred one billion, three hundred twenty-one million, two thousand, three hundred twelve".