231120453 has 16 divisors (see below), whose sum is σ = 313988096. Its totient is φ = 151184880.

The previous prime is 231120413. The next prime is 231120467. The reversal of 231120453 is 354021132.

It is not a de Polignac number, because 231120453 - 2¹⁰ = 231119429 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 (231120413) 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, 52350 + ... + 56592.

It is an arithmetic number, because the mean of its divisors is an integer number (19624256).

Almost surely, 2^231120453 is an apocalyptic number.

It is an amenable number.

231120453 is a deficient number, since it is larger than the sum of its proper divisors (82867643).

231120453 is a wasteful number, since it uses less digits than its factorization.

231120453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 231120453 is about 15202.6462499132. The cubic root of 231120453 is about 613.6858740070.

Adding to 231120453 its reverse (354021132), we get a palindrome (585141585).

The spelling of 231120453 in words is "two hundred thirty-one million, one hundred twenty thousand, four hundred fifty-three".