31416023 has 2 divisors, whose sum is σ = 31416024. Its totient is φ = 31416022.

The previous prime is 31416013. The next prime is 31416031. The reversal of 31416023 is 32061413.

It is a strong prime.

It is an emirp because it is prime and its reverse (32061413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31416023 - 2¹⁴ = 31399639 is a prime.

It is a super-2 number, since 2×31416023² = 1973933002273058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31415986 and 31416004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31416013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15708011 + 15708012.

It is an arithmetic number, because the mean of its divisors is an integer number (15708012).

Almost surely, 2^31416023 is an apocalyptic number.

31416023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31416023 is an equidigital number, since it uses as much as digits as its factorization.

31416023 is an odious number, because the sum of its binary digits is odd.

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

The square root of 31416023 is about 5604.9998215879. Note that the first 3 decimals coincide. The cubic root of 31416023 is about 315.5370798867.

Adding to 31416023 its reverse (32061413), we get a palindrome (63477436).

The spelling of 31416023 in words is "thirty-one million, four hundred sixteen thousand, twenty-three".