210312031129 has 2 divisors, whose sum is σ = 210312031130. Its totient is φ = 210312031128.

The previous prime is 210312031109. The next prime is 210312031159. The reversal of 210312031129 is 921130213012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195120975625 + 15191055504 = 441725^2 + 123252^2 .

It is a cyclic number.

It is not a de Polignac number, because 210312031129 - 2⁷ = 210312031001 is a prime.

It is not a weakly prime, because it can be changed into another prime (210312031109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105156015564 + 105156015565.

It is an arithmetic number, because the mean of its divisors is an integer number (105156015565).

Almost surely, 2^210312031129 is an apocalyptic number.

It is an amenable number.

210312031129 is a deficient number, since it is larger than the sum of its proper divisors (1).

210312031129 is an equidigital number, since it uses as much as digits as its factorization.

210312031129 is an evil number, because the sum of its binary digits is even.

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

The spelling of 210312031129 in words is "two hundred ten billion, three hundred twelve million, thirty-one thousand, one hundred twenty-nine".