61133519113 has 2 divisors, whose sum is σ = 61133519114. Its totient is φ = 61133519112.

The previous prime is 61133519089. The next prime is 61133519143. The reversal of 61133519113 is 31191533116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32113715209 + 29019803904 = 179203^2 + 170352^2 .

It is a cyclic number.

It is not a de Polignac number, because 61133519113 - 2⁹ = 61133518601 is a prime.

It is not a weakly prime, because it can be changed into another prime (61133519143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30566759556 + 30566759557.

It is an arithmetic number, because the mean of its divisors is an integer number (30566759557).

Almost surely, 2^61133519113 is an apocalyptic number.

It is an amenable number.

61133519113 is a deficient number, since it is larger than the sum of its proper divisors (1).

61133519113 is an equidigital number, since it uses as much as digits as its factorization.

61133519113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 34.

The spelling of 61133519113 in words is "sixty-one billion, one hundred thirty-three million, five hundred nineteen thousand, one hundred thirteen".