210031213127 has 2 divisors, whose sum is σ = 210031213128. Its totient is φ = 210031213126.

The previous prime is 210031213121. The next prime is 210031213141. The reversal of 210031213127 is 721312130012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210031213127 - 2¹⁶ = 210031147591 is a prime.

It is a super-2 number, since 2×210031213127² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210031213121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105015606563 + 105015606564.

It is an arithmetic number, because the mean of its divisors is an integer number (105015606564).

Almost surely, 2^210031213127 is an apocalyptic number.

210031213127 is a deficient number, since it is larger than the sum of its proper divisors (1).

210031213127 is an equidigital number, since it uses as much as digits as its factorization.

210031213127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 210031213127 its reverse (721312130012), we get a palindrome (931343343139).

The spelling of 210031213127 in words is "two hundred ten billion, thirty-one million, two hundred thirteen thousand, one hundred twenty-seven".