61260531113 has 4 divisors (see below), whose sum is σ = 61598987268. Its totient is φ = 60922074960.

The previous prime is 61260531107. The next prime is 61260531127. The reversal of 61260531113 is 31113506216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31446638224 + 29813892889 = 177332^2 + 172667^2 .

It is a cyclic number.

It is not a de Polignac number, because 61260531113 - 2⁴ = 61260531097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61260531313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169227806 + ... + 169228167.

It is an arithmetic number, because the mean of its divisors is an integer number (15399746817).

Almost surely, 2^61260531113 is an apocalyptic number.

It is an amenable number.

61260531113 is a deficient number, since it is larger than the sum of its proper divisors (338456155).

61260531113 is a wasteful number, since it uses less digits than its factorization.

61260531113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338456154.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 61260531113 in words is "sixty-one billion, two hundred sixty million, five hundred thirty-one thousand, one hundred thirteen".