231532424155409 has 16 divisors (see below), whose sum is σ = 262469106110400. Its totient is φ = 202471230142656.

The previous prime is 231532424155399. The next prime is 231532424155453. The reversal of 231532424155409 is 904551424235132.

It is a happy number.

231532424155409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231532424155409 - 2³² = 231528129188113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231532424151409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14732102 + ... + 26078720.

It is an arithmetic number, because the mean of its divisors is an integer number (16404319131900).

Almost surely, 2^{231532424155409} is an apocalyptic number.

It is an amenable number.

231532424155409 is a deficient number, since it is larger than the sum of its proper divisors (30936681954991).

231532424155409 is a wasteful number, since it uses less digits than its factorization.

231532424155409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11429264.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 231532424155409 in words is "two hundred thirty-one trillion, five hundred thirty-two billion, four hundred twenty-four million, one hundred fifty-five thousand, four hundred nine".