61120321193 has 4 divisors (see below), whose sum is σ = 61274277060. Its totient is φ = 60966365328.

The previous prime is 61120321159. The next prime is 61120321211. The reversal of 61120321193 is 39112302116.

61120321193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51316747024 + 9803574169 = 226532^2 + 99013^2 .

It is a cyclic number.

It is not a de Polignac number, because 61120321193 - 2¹⁰ = 61120320169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61120321393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76977338 + ... + 76978131.

It is an arithmetic number, because the mean of its divisors is an integer number (15318569265).

Almost surely, 2^61120321193 is an apocalyptic number.

It is an amenable number.

61120321193 is a deficient number, since it is larger than the sum of its proper divisors (153955867).

61120321193 is a wasteful number, since it uses less digits than its factorization.

61120321193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153955866.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 61120321193 in words is "sixty-one billion, one hundred twenty million, three hundred twenty-one thousand, one hundred ninety-three".