30100102261 has 2 divisors, whose sum is σ = 30100102262. Its totient is φ = 30100102260.

The previous prime is 30100102217. The next prime is 30100102303. The reversal of 30100102261 is 16220100103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21758020036 + 8342082225 = 147506^2 + 91335^2 .

It is an emirp because it is prime and its reverse (16220100103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30100102261 - 2⁹ = 30100101749 is a prime.

It is a super-2 number, since 2×30100102261² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30100102061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15050051130 + 15050051131.

It is an arithmetic number, because the mean of its divisors is an integer number (15050051131).

Almost surely, 2^30100102261 is an apocalyptic number.

It is an amenable number.

30100102261 is a deficient number, since it is larger than the sum of its proper divisors (1).

30100102261 is an equidigital number, since it uses as much as digits as its factorization.

30100102261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30100102261 its reverse (16220100103), we get a palindrome (46320202364).

The spelling of 30100102261 in words is "thirty billion, one hundred million, one hundred two thousand, two hundred sixty-one".