201231131233 has 8 divisors (see below), whose sum is σ = 219579029280. Its totient is φ = 182892259680.

The previous prime is 201231131219. The next prime is 201231131261. The reversal of 201231131233 is 332131132102.

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 201231131233 - 2⁹ = 201231130721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201231132233) 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, 2209963 + ... + 2299216.

It is an arithmetic number, because the mean of its divisors is an integer number (27447378660).

Almost surely, 2^201231131233 is an apocalyptic number.

It is an amenable number.

201231131233 is a deficient number, since it is larger than the sum of its proper divisors (18347898047).

201231131233 is a wasteful number, since it uses less digits than its factorization.

201231131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513247.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 201231131233 its reverse (332131132102), we get a palindrome (533362263335).

The spelling of 201231131233 in words is "two hundred one billion, two hundred thirty-one million, one hundred thirty-one thousand, two hundred thirty-three".