30343501861 has 2 divisors, whose sum is σ = 30343501862. Its totient is φ = 30343501860.

The previous prime is 30343501843. The next prime is 30343501897. The reversal of 30343501861 is 16810534303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17241265636 + 13102236225 = 131306^2 + 114465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30343501861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30343501261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15171750930 + 15171750931.

It is an arithmetic number, because the mean of its divisors is an integer number (15171750931).

Almost surely, 2^30343501861 is an apocalyptic number.

It is an amenable number.

30343501861 is a deficient number, since it is larger than the sum of its proper divisors (1).

30343501861 is an equidigital number, since it uses as much as digits as its factorization.

30343501861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 30343501861 in words is "thirty billion, three hundred forty-three million, five hundred one thousand, eight hundred sixty-one".