31061423 has 2 divisors, whose sum is σ = 31061424. Its totient is φ = 31061422.

The previous prime is 31061413. The next prime is 31061441. The reversal of 31061423 is 32416013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31061423 - 2¹⁴ = 31045039 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 31061395 and 31061404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31061413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15530711 + 15530712.

It is an arithmetic number, because the mean of its divisors is an integer number (15530712).

Almost surely, 2^31061423 is an apocalyptic number.

31061423 is a deficient number, since it is larger than the sum of its proper divisors (1).

31061423 is an equidigital number, since it uses as much as digits as its factorization.

31061423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 31061423 is about 5573.2775814596. The cubic root of 31061423 is about 314.3454047291.

Adding to 31061423 its reverse (32416013), we get a palindrome (63477436).

The spelling of 31061423 in words is "thirty-one million, sixty-one thousand, four hundred twenty-three".