231132425151 has 4 divisors (see below), whose sum is σ = 308176566872. Its totient is φ = 154088283432.

The previous prime is 231132425093. The next prime is 231132425159. The reversal of 231132425151 is 151524231132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231132425151 - 2⁶ = 231132425087 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 (231132425159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38522070856 + ... + 38522070861.

It is an arithmetic number, because the mean of its divisors is an integer number (77044141718).

Almost surely, 2^231132425151 is an apocalyptic number.

231132425151 is a deficient number, since it is larger than the sum of its proper divisors (77044141721).

231132425151 is an equidigital number, since it uses as much as digits as its factorization.

231132425151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77044141720.

The product of its digits is 7200, while the sum is 30.

Adding to 231132425151 its reverse (151524231132), we get a palindrome (382656656283).

The spelling of 231132425151 in words is "two hundred thirty-one billion, one hundred thirty-two million, four hundred twenty-five thousand, one hundred fifty-one".