210000101161 has 2 divisors, whose sum is σ = 210000101162. Its totient is φ = 210000101160.

The previous prime is 210000101137. The next prime is 210000101263. The reversal of 210000101161 is 161101000012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185701526761 + 24298574400 = 430931^2 + 155880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210000101161 is a prime.

It is not a weakly prime, because it can be changed into another prime (210000101131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000050580 + 105000050581.

It is an arithmetic number, because the mean of its divisors is an integer number (105000050581).

Almost surely, 2^210000101161 is an apocalyptic number.

It is an amenable number.

210000101161 is a deficient number, since it is larger than the sum of its proper divisors (1).

210000101161 is an equidigital number, since it uses as much as digits as its factorization.

210000101161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 210000101161 its reverse (161101000012), we get a palindrome (371101101173).

The spelling of 210000101161 in words is "two hundred ten billion, one hundred one thousand, one hundred sixty-one".