212411031 has 12 divisors (see below), whose sum is σ = 329454072. Its totient is φ = 121377648.

The previous prime is 212411021. The next prime is 212411041. The reversal of 212411031 is 130114212.

It is an interprime number because it is at equal distance from previous prime (212411021) and next prime (212411041).

It is not a de Polignac number, because 212411031 - 2¹¹ = 212408983 is a prime.

It is a super-2 number, since 2×212411031² = 90236892180965922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212411031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212411021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 722340 + ... + 722633.

It is an arithmetic number, because the mean of its divisors is an integer number (27454506).

Almost surely, 2^212411031 is an apocalyptic number.

212411031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212411031 is a deficient number, since it is larger than the sum of its proper divisors (117043041).

212411031 is a wasteful number, since it uses less digits than its factorization.

212411031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444990 (or 1444983 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 212411031 is about 14574.3278061117. The cubic root of 212411031 is about 596.6583035493.

Adding to 212411031 its reverse (130114212), we get a palindrome (342525243).

The spelling of 212411031 in words is "two hundred twelve million, four hundred eleven thousand, thirty-one".