13400201231 has 6 divisors (see below), whose sum is σ = 14142595032. Its totient is φ = 12694927140.

The previous prime is 13400201209. The next prime is 13400201239. The reversal of 13400201231 is 13210200431.

It is not a de Polignac number, because 13400201231 - 2⁶ = 13400201167 is a prime.

It is a super-2 number, since 2×13400201231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400201239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18559475 + ... + 18560196.

It is an arithmetic number, because the mean of its divisors is an integer number (2357099172).

Almost surely, 2^13400201231 is an apocalyptic number.

13400201231 is a deficient number, since it is larger than the sum of its proper divisors (742393801).

13400201231 is an equidigital number, since it uses as much as digits as its factorization.

13400201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37119709 (or 37119690 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13400201231 its reverse (13210200431), we get a palindrome (26610401662).

The spelling of 13400201231 in words is "thirteen billion, four hundred million, two hundred one thousand, two hundred thirty-one".