78030111 has 8 divisors (see below), whose sum is σ = 104227200. Its totient is φ = 51926552.

The previous prime is 78030109. The next prime is 78030133. The reversal of 78030111 is 11103087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78030111 - 2¹ = 78030109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78030101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21411 + ... + 24788.

It is an arithmetic number, because the mean of its divisors is an integer number (13028400).

Almost surely, 2^78030111 is an apocalyptic number.

78030111 is a deficient number, since it is larger than the sum of its proper divisors (26197089).

78030111 is a wasteful number, since it uses less digits than its factorization.

78030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46765.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 78030111 is about 8833.4654015284. The cubic root of 78030111 is about 427.3208414493.

Adding to 78030111 its reverse (11103087), we get a palindrome (89133198).

The spelling of 78030111 in words is "seventy-eight million, thirty thousand, one hundred eleven".