30026011261 has 2 divisors, whose sum is σ = 30026011262. Its totient is φ = 30026011260.

The previous prime is 30026011187. The next prime is 30026011333. The reversal of 30026011261 is 16211062003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29401960900 + 624050361 = 171470^2 + 24981^2 .

It is an emirp because it is prime and its reverse (16211062003) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30026011261 is a prime.

It is a super-2 number, since 2×30026011261² (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 (30026011861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15013005630 + 15013005631.

It is an arithmetic number, because the mean of its divisors is an integer number (15013005631).

Almost surely, 2^30026011261 is an apocalyptic number.

It is an amenable number.

30026011261 is a deficient number, since it is larger than the sum of its proper divisors (1).

30026011261 is an equidigital number, since it uses as much as digits as its factorization.

30026011261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30026011261 its reverse (16211062003), we get a palindrome (46237073264).

The spelling of 30026011261 in words is "thirty billion, twenty-six million, eleven thousand, two hundred sixty-one".