212416031 has 2 divisors, whose sum is σ = 212416032. Its totient is φ = 212416030.

The previous prime is 212416019. The next prime is 212416051. The reversal of 212416031 is 130614212.

It is an a-pointer prime, because the next prime (212416051) can be obtained adding 212416031 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212416031 - 2²⁶ = 145307167 is a prime.

It is a super-2 number, since 2×212416031² = 90241140451585922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 212415994 and 212416012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212416051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106208015 + 106208016.

It is an arithmetic number, because the mean of its divisors is an integer number (106208016).

Almost surely, 2^212416031 is an apocalyptic number.

212416031 is a deficient number, since it is larger than the sum of its proper divisors (1).

212416031 is an equidigital number, since it uses as much as digits as its factorization.

212416031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 212416031 is about 14574.4993396000. The cubic root of 212416031 is about 596.6629851456.

It can be divided in two parts, 21241 and 6031, that added together give a palindrome (27272).

The spelling of 212416031 in words is "two hundred twelve million, four hundred sixteen thousand, thirty-one".