231273001 has 4 divisors (see below), whose sum is σ = 231883600. Its totient is φ = 230662404.

The previous prime is 231272983. The next prime is 231273011. The reversal of 231273001 is 100372132.

231273001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231273001 - 2¹¹ = 231270953 is a prime.

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 231273001.

It is not an unprimeable number, because it can be changed into a prime (231273011) 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, 304731 + ... + 305488.

It is an arithmetic number, because the mean of its divisors is an integer number (57970900).

Almost surely, 2^231273001 is an apocalyptic number.

It is an amenable number.

231273001 is a deficient number, since it is larger than the sum of its proper divisors (610599).

231273001 is an equidigital number, since it uses as much as digits as its factorization.

231273001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610598.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 231273001 is about 15207.6625751626. The cubic root of 231273001 is about 613.8208627286.

The spelling of 231273001 in words is "two hundred thirty-one million, two hundred seventy-three thousand, one".