31342903 has 2 divisors, whose sum is σ = 31342904. Its totient is φ = 31342902.

The previous prime is 31342889. The next prime is 31342933. The reversal of 31342903 is 30924313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31342903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31342933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671451 + 15671452.

It is an arithmetic number, because the mean of its divisors is an integer number (15671452).

Almost surely, 2^31342903 is an apocalyptic number.

31342903 is a deficient number, since it is larger than the sum of its proper divisors (1).

31342903 is an equidigital number, since it uses as much as digits as its factorization.

31342903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 31342903 is about 5598.4732740275. The cubic root of 31342903 is about 315.2920881899.

The spelling of 31342903 in words is "thirty-one million, three hundred forty-two thousand, nine hundred three".