1231211032201 has 8 divisors (see below), whose sum is σ = 1243261206720. Its totient is φ = 1219162716912.

The previous prime is 1231211032151. The next prime is 1231211032231. The reversal of 1231211032201 is 1022301121321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231211032201 - 2²⁹ = 1230674161289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231211032231) 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, 885195 + ... + 1801663.

It is an arithmetic number, because the mean of its divisors is an integer number (155407650840).

Almost surely, 2^{1231211032201} is an apocalyptic number.

It is an amenable number.

1231211032201 is a deficient number, since it is larger than the sum of its proper divisors (12050174519).

1231211032201 is a wasteful number, since it uses less digits than its factorization.

1231211032201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929615.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1231211032201 its reverse (1022301121321), we get a palindrome (2253512153522).

The spelling of 1231211032201 in words is "one trillion, two hundred thirty-one billion, two hundred eleven million, thirty-two thousand, two hundred one".