78201104011 has 2 divisors, whose sum is σ = 78201104012. Its totient is φ = 78201104010.

The previous prime is 78201103951. The next prime is 78201104017. The reversal of 78201104011 is 11040110287.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78201104011 is a prime.

It is a super-2 number, since 2×78201104011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78201104017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39100552005 + 39100552006.

It is an arithmetic number, because the mean of its divisors is an integer number (39100552006).

Almost surely, 2^78201104011 is an apocalyptic number.

78201104011 is a deficient number, since it is larger than the sum of its proper divisors (1).

78201104011 is an equidigital number, since it uses as much as digits as its factorization.

78201104011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 78201104011 its reverse (11040110287), we get a palindrome (89241214298).

The spelling of 78201104011 in words is "seventy-eight billion, two hundred one million, one hundred four thousand, eleven".