31032923 has 2 divisors, whose sum is σ = 31032924. Its totient is φ = 31032922.

The previous prime is 31032917. The next prime is 31032949. The reversal of 31032923 is 32923013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31032923 - 2⁴ = 31032907 is a prime.

It is not a weakly prime, because it can be changed into another prime (31032223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516461 + 15516462.

It is an arithmetic number, because the mean of its divisors is an integer number (15516462).

Almost surely, 2^31032923 is an apocalyptic number.

31032923 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032923 is an equidigital number, since it uses as much as digits as its factorization.

31032923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 31032923 is about 5570.7201509320. The cubic root of 31032923 is about 314.2492341464.

Adding to 31032923 its reverse (32923013), we get a palindrome (63955936).

It can be divided in two parts, 310 and 32923, that added together give a palindrome (33233).

The spelling of 31032923 in words is "thirty-one million, thirty-two thousand, nine hundred twenty-three".