201232031 has 16 divisors (see below), whose sum is σ = 270187008. Its totient is φ = 144741600.

The previous prime is 201232013. The next prime is 201232063. The reversal of 201232031 is 130232102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201232031 - 2⁶ = 201231967 is a prime.

It is a super-2 number, since 2×201232031² = 80988660600769922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201231997 and 201232015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201232091) 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, 99515 + ... + 101516.

It is an arithmetic number, because the mean of its divisors is an integer number (16886688).

Almost surely, 2^201232031 is an apocalyptic number.

201232031 is a deficient number, since it is larger than the sum of its proper divisors (68954977).

201232031 is a wasteful number, since it uses less digits than its factorization.

201232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201062.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 201232031 is about 14185.6276209409. The cubic root of 201232031 is about 586.0019171195.

Adding to 201232031 its reverse (130232102), we get a palindrome (331464133).

It can be divided in two parts, 2012 and 32031, that added together give a palindrome (34043).

The spelling of 201232031 in words is "two hundred one million, two hundred thirty-two thousand, thirty-one".