31341623 has 2 divisors, whose sum is σ = 31341624. Its totient is φ = 31341622.

The previous prime is 31341599. The next prime is 31341631. The reversal of 31341623 is 32614313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31341623 - 2¹⁶ = 31276087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31341643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670811 + 15670812.

It is an arithmetic number, because the mean of its divisors is an integer number (15670812).

Almost surely, 2^31341623 is an apocalyptic number.

31341623 is a deficient number, since it is larger than the sum of its proper divisors (1).

31341623 is an equidigital number, since it uses as much as digits as its factorization.

31341623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 31341623 is about 5598.3589559799. The cubic root of 31341623 is about 315.2877961032.

Adding to 31341623 its reverse (32614313), we get a palindrome (63955936).

The spelling of 31341623 in words is "thirty-one million, three hundred forty-one thousand, six hundred twenty-three".