61541343204122 has 4 divisors (see below), whose sum is σ = 92312014806186. Its totient is φ = 30770671602060.

The previous prime is 61541343204113. The next prime is 61541343204127. The reversal of 61541343204122 is 22140234314516.

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

It can be written as a sum of positive squares in only one way, i.e., 50909380876561 + 10631962327561 = 7135081^2 + 3260669^2 .

It is not an unprimeable number, because it can be changed into a prime (61541343204127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15385335801029 + ... + 15385335801032.

Almost surely, 2^{61541343204122} is an apocalyptic number.

61541343204122 is a deficient number, since it is larger than the sum of its proper divisors (30770671602064).

61541343204122 is a wasteful number, since it uses less digits than its factorization.

61541343204122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30770671602063.

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 61541343204122 its reverse (22140234314516), we get a palindrome (83681577518638).

The spelling of 61541343204122 in words is "sixty-one trillion, five hundred forty-one billion, three hundred forty-three million, two hundred four thousand, one hundred twenty-two".