231210545413 has 8 divisors (see below), whose sum is σ = 236149003800. Its totient is φ = 226293420288.

The previous prime is 231210545399. The next prime is 231210545443. The reversal of 231210545413 is 314545012132.

231210545413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 86416597089 + 144793948324 = 293967^2 + 380518^2 .

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 231210545413 - 2¹³ = 231210537221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231210545443) 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 7 ways as a sum of consecutive naturals, for example, 5311408 + ... + 5354761.

It is an arithmetic number, because the mean of its divisors is an integer number (29518625475).

Almost surely, 2^231210545413 is an apocalyptic number.

It is an amenable number.

231210545413 is a deficient number, since it is larger than the sum of its proper divisors (4938458387).

231210545413 is a wasteful number, since it uses less digits than its factorization.

231210545413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666631.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 231210545413 its reverse (314545012132), we get a palindrome (545755557545).

The spelling of 231210545413 in words is "two hundred thirty-one billion, two hundred ten million, five hundred forty-five thousand, four hundred thirteen".