31301423 has 2 divisors, whose sum is σ = 31301424. Its totient is φ = 31301422.

The previous prime is 31301419. The next prime is 31301443. The reversal of 31301423 is 32410313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31301423 - 2² = 31301419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31301443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650711 + 15650712.

It is an arithmetic number, because the mean of its divisors is an integer number (15650712).

Almost surely, 2^31301423 is an apocalyptic number.

31301423 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301423 is an equidigital number, since it uses as much as digits as its factorization.

31301423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31301423 is about 5594.7674661240. The cubic root of 31301423 is about 315.1529382473.

Adding to 31301423 its reverse (32410313), we get a palindrome (63711736).

The spelling of 31301423 in words is "thirty-one million, three hundred one thousand, four hundred twenty-three".