321212001200231 has 16 divisors (see below), whose sum is σ = 326788968070656. Its totient is φ = 315664314420000.

The previous prime is 321212001200159. The next prime is 321212001200261. The reversal of 321212001200231 is 132002100212123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321212001200231 is a prime.

It is a super-2 number, since 2×321212001200231² (a number of 30 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 (321212001200261) 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, 2317795361 + ... + 2317933941.

It is an arithmetic number, because the mean of its divisors is an integer number (20424310504416).

Almost surely, 2^{321212001200231} is an apocalyptic number.

321212001200231 is a deficient number, since it is larger than the sum of its proper divisors (5576966870425).

321212001200231 is a wasteful number, since it uses less digits than its factorization.

321212001200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243934.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 321212001200231 its reverse (132002100212123), we get a palindrome (453214101412354).

The spelling of 321212001200231 in words is "three hundred twenty-one trillion, two hundred twelve billion, one million, two hundred thousand, two hundred thirty-one".