102111315078 has 32 divisors (see below), whose sum is σ = 209226961152. Its totient is φ = 33204981600.

The previous prime is 102111315049. The next prime is 102111315143. The reversal of 102111315078 is 870513111201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29218 + ... + 452853.

It is an arithmetic number, because the mean of its divisors is an integer number (6538342536).

Almost surely, 2^102111315078 is an apocalyptic number.

102111315078 is an abundant number, since it is smaller than the sum of its proper divisors (107115646074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102111315078 is a wasteful number, since it uses less digits than its factorization.

102111315078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482940.

The product of its (nonzero) digits is 1680, while the sum is 30.

Adding to 102111315078 its reverse (870513111201), we get a palindrome (972624426279).

The spelling of 102111315078 in words is "one hundred two billion, one hundred eleven million, three hundred fifteen thousand, seventy-eight".