231202321073 has 2 divisors, whose sum is σ = 231202321074. Its totient is φ = 231202321072.

The previous prime is 231202321003. The next prime is 231202321111. The reversal of 231202321073 is 370123202132.

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., 212979481009 + 18222840064 = 461497^2 + 134992^2 .

It is a cyclic number.

It is not a de Polignac number, because 231202321073 - 2²⁸ = 230933885617 is a prime.

It is not a weakly prime, because it can be changed into another prime (231202321003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115601160536 + 115601160537.

It is an arithmetic number, because the mean of its divisors is an integer number (115601160537).

Almost surely, 2^231202321073 is an apocalyptic number.

It is an amenable number.

231202321073 is a deficient number, since it is larger than the sum of its proper divisors (1).

231202321073 is an equidigital number, since it uses as much as digits as its factorization.

231202321073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The spelling of 231202321073 in words is "two hundred thirty-one billion, two hundred two million, three hundred twenty-one thousand, seventy-three".