60721521011191 has 2 divisors, whose sum is σ = 60721521011192. Its totient is φ = 60721521011190.

The previous prime is 60721521011143. The next prime is 60721521011201. The reversal of 60721521011191 is 19111012512706.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 60721521011191 - 2²³ = 60721512622583 is a prime.

It is a super-2 number, since 2×60721521011191² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 60721521011191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60721521011491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30360760505595 + 30360760505596.

It is an arithmetic number, because the mean of its divisors is an integer number (30360760505596).

Almost surely, 2^{60721521011191} is an apocalyptic number.

60721521011191 is a deficient number, since it is larger than the sum of its proper divisors (1).

60721521011191 is an equidigital number, since it uses as much as digits as its factorization.

60721521011191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 37.

Adding to 60721521011191 its reverse (19111012512706), we get a palindrome (79832533523897).

The spelling of 60721521011191 in words is "sixty trillion, seven hundred twenty-one billion, five hundred twenty-one million, eleven thousand, one hundred ninety-one".