231120120313 has 2 divisors, whose sum is σ = 231120120314. Its totient is φ = 231120120312.

The previous prime is 231120120277. The next prime is 231120120347. The reversal of 231120120313 is 313021021132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199069453584 + 32050666729 = 446172^2 + 179027^2 .

It is a cyclic number.

It is not a de Polignac number, because 231120120313 - 2¹⁷ = 231119989241 is a prime.

It is not a weakly prime, because it can be changed into another prime (231120120353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115560060156 + 115560060157.

It is an arithmetic number, because the mean of its divisors is an integer number (115560060157).

Almost surely, 2^231120120313 is an apocalyptic number.

It is an amenable number.

231120120313 is a deficient number, since it is larger than the sum of its proper divisors (1).

231120120313 is an equidigital number, since it uses as much as digits as its factorization.

231120120313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231120120313 its reverse (313021021132), we get a palindrome (544141141445).

The spelling of 231120120313 in words is "two hundred thirty-one billion, one hundred twenty million, one hundred twenty thousand, three hundred thirteen".