201231030212001 has 40 divisors (see below), whose sum is σ = 301604092601504. Its totient is φ = 133707926301120.

The previous prime is 201231030211979. The next prime is 201231030212039. The reversal of 201231030212001 is 100212030132102.

201231030212001 is a `hidden beast` number, since 20 + 12 + 310 + 302 + 1 + 20 + 0 + 1 = 666.

It is not a de Polignac number, because 201231030212001 - 2⁷ = 201231030211873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201231030217001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 374999781 + ... + 375536013.

Almost surely, 2^{201231030212001} is an apocalyptic number.

It is an amenable number.

201231030212001 is a deficient number, since it is larger than the sum of its proper divisors (100373062389503).

201231030212001 is a wasteful number, since it uses less digits than its factorization.

201231030212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551643 (or 551634 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201231030212001 its reverse (100212030132102), we get a palindrome (301443060344103).

The spelling of 201231030212001 in words is "two hundred one trillion, two hundred thirty-one billion, thirty million, two hundred twelve thousand, one".