31923041 has 2 divisors, whose sum is σ = 31923042. Its totient is φ = 31923040.

The previous prime is 31923029. The next prime is 31923043. The reversal of 31923041 is 14032913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28313041 + 3610000 = 5321^2 + 1900^2 .

It is a cyclic number.

It is not a de Polignac number, because 31923041 - 2⁶ = 31922977 is a prime.

Together with 31923043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 31922998 and 31923016.

It is not a weakly prime, because it can be changed into another prime (31923043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15961520 + 15961521.

It is an arithmetic number, because the mean of its divisors is an integer number (15961521).

Almost surely, 2^31923041 is an apocalyptic number.

It is an amenable number.

31923041 is a deficient number, since it is larger than the sum of its proper divisors (1).

31923041 is an equidigital number, since it uses as much as digits as its factorization.

31923041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 31923041 is about 5650.0478759034. The cubic root of 31923041 is about 317.2254960962.

Adding to 31923041 its reverse (14032913), we get a palindrome (45955954).

The spelling of 31923041 in words is "thirty-one million, nine hundred twenty-three thousand, forty-one".