231125335451 has 4 divisors (see below), whose sum is σ = 231246535752. Its totient is φ = 231004135152.

The previous prime is 231125335447. The next prime is 231125335457. The reversal of 231125335451 is 154533521132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 231125335451 - 2² = 231125335447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231125335457) 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, 60597290 + ... + 60601103.

It is an arithmetic number, because the mean of its divisors is an integer number (57811633938).

Almost surely, 2^231125335451 is an apocalyptic number.

231125335451 is a deficient number, since it is larger than the sum of its proper divisors (121200301).

231125335451 is a wasteful number, since it uses less digits than its factorization.

231125335451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121200300.

The product of its digits is 54000, while the sum is 35.

Adding to 231125335451 its reverse (154533521132), we get a palindrome (385658856583).

The spelling of 231125335451 in words is "two hundred thirty-one billion, one hundred twenty-five million, three hundred thirty-five thousand, four hundred fifty-one".