210010012111957 has 2 divisors, whose sum is σ = 210010012111958. Its totient is φ = 210010012111956.

The previous prime is 210010012111951. The next prime is 210010012112003. The reversal of 210010012111957 is 759111210010012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200679834154801 + 9330177957156 = 14166151^2 + 3054534^2 .

It is a cyclic number.

It is not a de Polignac number, because 210010012111957 - 2⁴⁷ = 69272523756629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210010012111951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005006055978 + 105005006055979.

It is an arithmetic number, because the mean of its divisors is an integer number (105005006055979).

Almost surely, 2^{210010012111957} is an apocalyptic number.

It is an amenable number.

210010012111957 is a deficient number, since it is larger than the sum of its proper divisors (1).

210010012111957 is an equidigital number, since it uses as much as digits as its factorization.

210010012111957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 31.

Adding to 210010012111957 its reverse (759111210010012), we get a palindrome (969121222121969).

The spelling of 210010012111957 in words is "two hundred ten trillion, ten billion, twelve million, one hundred eleven thousand, nine hundred fifty-seven".