231535421351413 has 8 divisors (see below), whose sum is σ = 244562545584896. Its totient is φ = 218855687097600.

The previous prime is 231535421351303. The next prime is 231535421351417. The reversal of 231535421351413 is 314153124535132.

231535421351413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231535421351413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

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 231535421351413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231535421351417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86847493548 + ... + 86847496213.

It is an arithmetic number, because the mean of its divisors is an integer number (30570318198112).

Almost surely, 2^{231535421351413} is an apocalyptic number.

It is an amenable number.

231535421351413 is a deficient number, since it is larger than the sum of its proper divisors (13027124233483).

231535421351413 is a wasteful number, since it uses less digits than its factorization.

231535421351413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173694989835.

The product of its digits is 648000, while the sum is 43.

Adding to 231535421351413 its reverse (314153124535132), we get a palindrome (545688545886545).

The spelling of 231535421351413 in words is "two hundred thirty-one trillion, five hundred thirty-five billion, four hundred twenty-one million, three hundred fifty-one thousand, four hundred thirteen".