231298033 has 2 divisors, whose sum is σ = 231298034. Its totient is φ = 231298032.

The previous prime is 231298027. The next prime is 231298057. The reversal of 231298033 is 330892132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207561649 + 23736384 = 14407^2 + 4872^2 .

It is a cyclic number.

It is not a de Polignac number, because 231298033 - 2¹³ = 231289841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231297986 and 231298004.

It is not a weakly prime, because it can be changed into another prime (231298013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115649016 + 115649017.

It is an arithmetic number, because the mean of its divisors is an integer number (115649017).

Almost surely, 2^231298033 is an apocalyptic number.

It is an amenable number.

231298033 is a deficient number, since it is larger than the sum of its proper divisors (1).

231298033 is an equidigital number, since it uses as much as digits as its factorization.

231298033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 231298033 is about 15208.4855590555. The cubic root of 231298033 is about 613.8430077108.

The spelling of 231298033 in words is "two hundred thirty-one million, two hundred ninety-eight thousand, thirty-three".