231535421351412 has 96 divisors (see below), whose sum is σ = 542383356641280. Its totient is φ = 76874196700800.

The previous prime is 231535421351303. The next prime is 231535421351417. The reversal of 231535421351412 is 214153124535132.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13459005603 + ... + 13459022805.

It is an arithmetic number, because the mean of its divisors is an integer number (5649826631680).

Almost surely, 2^{231535421351412} is an apocalyptic number.

It is an amenable number.

231535421351412 is an abundant number, since it is smaller than the sum of its proper divisors (310847935289868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231535421351412 is a wasteful number, since it uses less digits than its factorization.

231535421351412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21213 (or 21211 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

Adding to 231535421351412 its reverse (214153124535132), we get a palindrome (445688545886544).

The spelling of 231535421351412 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 twelve".