312201001 has 8 divisors (see below), whose sum is σ = 364083200. Its totient is φ = 267600564.

The previous prime is 312200983. The next prime is 312201013. The reversal of 312201001 is 100102213.

It is not a de Polignac number, because 312201001 - 2⁹ = 312200489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312201061) 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, 454761 + ... + 455446.

It is an arithmetic number, because the mean of its divisors is an integer number (45510400).

Almost surely, 2^312201001 is an apocalyptic number.

It is an amenable number.

312201001 is a deficient number, since it is larger than the sum of its proper divisors (51882199).

312201001 is an frugal number, since it uses more digits than its factorization.

312201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910228 (or 910214 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 312201001 is about 17669.2105369765. The cubic root of 312201001 is about 678.3879062451.

Adding to 312201001 its reverse (100102213), we get a palindrome (412303214).

The spelling of 312201001 in words is "three hundred twelve million, two hundred one thousand, one".