201201231 has 16 divisors (see below), whose sum is σ = 334464768. Its totient is φ = 104520000.

The previous prime is 201201193. The next prime is 201201251. The reversal of 201201231 is 132102102.

It is not a de Polignac number, because 201201231 - 2⁶ = 201201167 is a prime.

It is a super-2 number, since 2×201201231² = 80963870711830722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201251) 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, 435270 + ... + 435731.

It is an arithmetic number, because the mean of its divisors is an integer number (20904048).

Almost surely, 2^201201231 is an apocalyptic number.

201201231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201201231 is a deficient number, since it is larger than the sum of its proper divisors (133263537).

201201231 is a wasteful number, since it uses less digits than its factorization.

201201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871022.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201201231 is about 14184.5419735711. The cubic root of 201201231 is about 585.9720183341.

Adding to 201201231 its reverse (132102102), we get a palindrome (333303333).

The spelling of 201201231 in words is "two hundred one million, two hundred one thousand, two hundred thirty-one".