30243103081 has 2 divisors, whose sum is σ = 30243103082. Its totient is φ = 30243103080.

The previous prime is 30243103001. The next prime is 30243103117. The reversal of 30243103081 is 18030134203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18833445225 + 11409657856 = 137235^2 + 106816^2 .

It is a cyclic number.

It is not a de Polignac number, because 30243103081 - 2¹⁵ = 30243070313 is a prime.

It is a super-2 number, since 2×30243103081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30243103001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15121551540 + 15121551541.

It is an arithmetic number, because the mean of its divisors is an integer number (15121551541).

Almost surely, 2^30243103081 is an apocalyptic number.

It is an amenable number.

30243103081 is a deficient number, since it is larger than the sum of its proper divisors (1).

30243103081 is an equidigital number, since it uses as much as digits as its factorization.

30243103081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 30243103081 its reverse (18030134203), we get a palindrome (48273237284).

The spelling of 30243103081 in words is "thirty billion, two hundred forty-three million, one hundred three thousand, eighty-one".