201232434131 has 4 divisors (see below), whose sum is σ = 202134821952. Its totient is φ = 200330046312.

The previous prime is 201232434043. The next prime is 201232434163. The reversal of 201232434131 is 131434232102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201232434131 - 2¹⁴ = 201232417747 is a prime.

It is a super-2 number, since 2×201232434131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201232434131.

It is not an unprimeable number, because it can be changed into a prime (201232434331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451193576 + ... + 451194021.

It is an arithmetic number, because the mean of its divisors is an integer number (50533705488).

Almost surely, 2^201232434131 is an apocalyptic number.

201232434131 is a deficient number, since it is larger than the sum of its proper divisors (902387821).

201232434131 is an equidigital number, since it uses as much as digits as its factorization.

201232434131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902387820.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 201232434131 its reverse (131434232102), we get a palindrome (332666666233).

The spelling of 201232434131 in words is "two hundred one billion, two hundred thirty-two million, four hundred thirty-four thousand, one hundred thirty-one".