30312232061 has 2 divisors, whose sum is σ = 30312232062. Its totient is φ = 30312232060.

The previous prime is 30312232031. The next prime is 30312232079. The reversal of 30312232061 is 16023221303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21364207225 + 8948024836 = 146165^2 + 94594^2 .

It is a cyclic number.

It is not a de Polignac number, because 30312232061 - 2¹⁸ = 30311969917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30312232031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156116030 + 15156116031.

It is an arithmetic number, because the mean of its divisors is an integer number (15156116031).

Almost surely, 2^30312232061 is an apocalyptic number.

It is an amenable number.

30312232061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30312232061 is an equidigital number, since it uses as much as digits as its factorization.

30312232061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30312232061 its reverse (16023221303), we get a palindrome (46335453364).

The spelling of 30312232061 in words is "thirty billion, three hundred twelve million, two hundred thirty-two thousand, sixty-one".