31414121 has 2 divisors, whose sum is σ = 31414122. Its totient is φ = 31414120.

The previous prime is 31414111. The next prime is 31414133. The reversal of 31414121 is 12141413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28472896 + 2941225 = 5336^2 + 1715^2 .

It is an emirp because it is prime and its reverse (12141413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31414121 - 2⁶ = 31414057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31414121.

It is not a weakly prime, because it can be changed into another prime (31414111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15707060 + 15707061.

It is an arithmetic number, because the mean of its divisors is an integer number (15707061).

Almost surely, 2^31414121 is an apocalyptic number.

It is an amenable number.

31414121 is a deficient number, since it is larger than the sum of its proper divisors (1).

31414121 is an equidigital number, since it uses as much as digits as its factorization.

31414121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 17.

The square root of 31414121 is about 5604.8301490768. The cubic root of 31414121 is about 315.5307119723.

Adding to 31414121 its reverse (12141413), we get a palindrome (43555534).

It can be divided in two parts, 3141412 and 1, that added together give a palindrome (3141413).

The spelling of 31414121 in words is "thirty-one million, four hundred fourteen thousand, one hundred twenty-one".