231120430253 has 2 divisors, whose sum is σ = 231120430254. Its totient is φ = 231120430252.

The previous prime is 231120430187. The next prime is 231120430267. The reversal of 231120430253 is 352034021132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152129641444 + 78990788809 = 390038^2 + 281053^2 .

It is a cyclic number.

It is not a de Polignac number, because 231120430253 - 2³⁰ = 230046688429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231120438253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115560215126 + 115560215127.

It is an arithmetic number, because the mean of its divisors is an integer number (115560215127).

Almost surely, 2^231120430253 is an apocalyptic number.

It is an amenable number.

231120430253 is a deficient number, since it is larger than the sum of its proper divisors (1).

231120430253 is an equidigital number, since it uses as much as digits as its factorization.

231120430253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 231120430253 its reverse (352034021132), we get a palindrome (583154451385).

The spelling of 231120430253 in words is "two hundred thirty-one billion, one hundred twenty million, four hundred thirty thousand, two hundred fifty-three".