61162020411211 has 2 divisors, whose sum is σ = 61162020411212. Its totient is φ = 61162020411210.

The previous prime is 61162020411133. The next prime is 61162020411241. The reversal of 61162020411211 is 11211402026116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61162020411211 - 2¹¹ = 61162020409163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61162020411211.

It is not a weakly prime, because it can be changed into another prime (61162020411241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30581010205605 + 30581010205606.

It is an arithmetic number, because the mean of its divisors is an integer number (30581010205606).

Almost surely, 2^{61162020411211} is an apocalyptic number.

61162020411211 is a deficient number, since it is larger than the sum of its proper divisors (1).

61162020411211 is an equidigital number, since it uses as much as digits as its factorization.

61162020411211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 61162020411211 its reverse (11211402026116), we get a palindrome (72373422437327).

The spelling of 61162020411211 in words is "sixty-one trillion, one hundred sixty-two billion, twenty million, four hundred eleven thousand, two hundred eleven".