231003013 has 2 divisors, whose sum is σ = 231003014. Its totient is φ = 231003012.

The previous prime is 231002999. The next prime is 231003037. The reversal of 231003013 is 310300132.

231003013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216737284 + 14265729 = 14722^2 + 3777^2 .

It is a cyclic number.

It is not a de Polignac number, because 231003013 - 2¹³ = 230994821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231002984 and 231003002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231003313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115501506 + 115501507.

It is an arithmetic number, because the mean of its divisors is an integer number (115501507).

Almost surely, 2^231003013 is an apocalyptic number.

It is an amenable number.

231003013 is a deficient number, since it is larger than the sum of its proper divisors (1).

231003013 is an equidigital number, since it uses as much as digits as its factorization.

231003013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 231003013 is about 15198.7832736703. The cubic root of 231003013 is about 613.5819116519.

Adding to 231003013 its reverse (310300132), we get a palindrome (541303145).

The spelling of 231003013 in words is "two hundred thirty-one million, three thousand, thirteen".