212130031129 has 2 divisors, whose sum is σ = 212130031130. Its totient is φ = 212130031128.

The previous prime is 212130031109. The next prime is 212130031151. The reversal of 212130031129 is 921130031212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131105547225 + 81024483904 = 362085^2 + 284648^2 .

It is a cyclic number.

It is not a de Polignac number, because 212130031129 - 2⁹ = 212130030617 is a prime.

It is a super-3 number, since 3×212130031129³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (212130031109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106065015564 + 106065015565.

It is an arithmetic number, because the mean of its divisors is an integer number (106065015565).

Almost surely, 2^212130031129 is an apocalyptic number.

It is an amenable number.

212130031129 is a deficient number, since it is larger than the sum of its proper divisors (1).

212130031129 is an equidigital number, since it uses as much as digits as its factorization.

212130031129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 212130031129 in words is "two hundred twelve billion, one hundred thirty million, thirty-one thousand, one hundred twenty-nine".