30951728640011 has 2 divisors, whose sum is σ = 30951728640012. Its totient is φ = 30951728640010.

The previous prime is 30951728639989. The next prime is 30951728640043. The reversal of 30951728640011 is 11004682715903.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30951728640011 is a prime.

It is not a weakly prime, because it can be changed into another prime (30951728640061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15475864320005 + 15475864320006.

It is an arithmetic number, because the mean of its divisors is an integer number (15475864320006).

It is a 2-persistent number, because it is pandigital, and so is 2⋅30951728640011 = 61903457280022, but 3⋅30951728640011 = 92855185920033 is not.

Almost surely, 2^{30951728640011} is an apocalyptic number.

30951728640011 is a deficient number, since it is larger than the sum of its proper divisors (1).

30951728640011 is an equidigital number, since it uses as much as digits as its factorization.

30951728640011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 30951728640011 in words is "thirty trillion, nine hundred fifty-one billion, seven hundred twenty-eight million, six hundred forty thousand, eleven".