231045101 has 4 divisors (see below), whose sum is σ = 264051552. Its totient is φ = 198038652.

The previous prime is 231045083. The next prime is 231045103. The reversal of 231045101 is 101540132.

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 not a de Polignac number, because 231045101 - 2⁶ = 231045037 is a prime.

It is a super-2 number, since 2×231045101² = 106763677392200402, which contains 22 as substring.

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 231045101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231045103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16503215 + ... + 16503228.

It is an arithmetic number, because the mean of its divisors is an integer number (66012888).

Almost surely, 2^231045101 is an apocalyptic number.

It is an amenable number.

231045101 is a deficient number, since it is larger than the sum of its proper divisors (33006451).

231045101 is an equidigital number, since it uses as much as digits as its factorization.

231045101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33006450.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 231045101 is about 15200.1677951265. The cubic root of 231045101 is about 613.6191736007.

Adding to 231045101 its reverse (101540132), we get a palindrome (332585233).

The spelling of 231045101 in words is "two hundred thirty-one million, forty-five thousand, one hundred one".