30403215402061 has 2 divisors, whose sum is σ = 30403215402062. Its totient is φ = 30403215402060.

The previous prime is 30403215402037. The next prime is 30403215402083. The reversal of 30403215402061 is 16020451230403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30403159376836 + 56025225 = 5513906^2 + 7485^2 .

It is a cyclic number.

It is not a de Polignac number, because 30403215402061 - 2¹¹ = 30403215400013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30403215402031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15201607701030 + 15201607701031.

It is an arithmetic number, because the mean of its divisors is an integer number (15201607701031).

Almost surely, 2^{30403215402061} is an apocalyptic number.

It is an amenable number.

30403215402061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30403215402061 is an equidigital number, since it uses as much as digits as its factorization.

30403215402061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 30403215402061 its reverse (16020451230403), we get a palindrome (46423666632464).

The spelling of 30403215402061 in words is "thirty trillion, four hundred three billion, two hundred fifteen million, four hundred two thousand, sixty-one".