102020100178 has 16 divisors (see below), whose sum is σ = 153161280000. Its totient is φ = 50966363952.

The previous prime is 102020100157. The next prime is 102020100179. The reversal of 102020100178 is 871001020201.

It is not an unprimeable number, because it can be changed into a prime (102020100179) 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, 16779343 + ... + 16785421.

It is an arithmetic number, because the mean of its divisors is an integer number (9572580000).

Almost surely, 2^102020100178 is an apocalyptic number.

102020100178 is a deficient number, since it is larger than the sum of its proper divisors (51141179822).

102020100178 is a wasteful number, since it uses less digits than its factorization.

102020100178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11889.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 102020100178 its reverse (871001020201), we get a palindrome (973021120379).

It can be divided in two parts, 10202010017 and 8, that added together give a square (10202010025 = 101005²).

The spelling of 102020100178 in words is "one hundred two billion, twenty million, one hundred thousand, one hundred seventy-eight".