231740028973 has 2 divisors, whose sum is σ = 231740028974. Its totient is φ = 231740028972.

The previous prime is 231740028931. The next prime is 231740029019. The reversal of 231740028973 is 379820047132.

231740028973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (231740029019) can be obtained adding 231740028973 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188275284649 + 43464744324 = 433907^2 + 208482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231740028973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231740088973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115870014486 + 115870014487.

It is an arithmetic number, because the mean of its divisors is an integer number (115870014487).

Almost surely, 2^231740028973 is an apocalyptic number.

It is an amenable number.

231740028973 is a deficient number, since it is larger than the sum of its proper divisors (1).

231740028973 is an equidigital number, since it uses as much as digits as its factorization.

231740028973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 231740028973 in words is "two hundred thirty-one billion, seven hundred forty million, twenty-eight thousand, nine hundred seventy-three".