102118712 has 32 divisors (see below), whose sum is σ = 206254080. Its totient is φ = 47261280.

The previous prime is 102118703. The next prime is 102118717. The reversal of 102118712 is 217811201.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102118717) 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, 3248 + ... + 14655.

It is an arithmetic number, because the mean of its divisors is an integer number (6445440).

Almost surely, 2^102118712 is an apocalyptic number.

It is an amenable number.

102118712 is an abundant number, since it is smaller than the sum of its proper divisors (104135368).

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

102118712 is a wasteful number, since it uses less digits than its factorization.

102118712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17963 (or 17959 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 102118712 is about 10105.3803491012. The cubic root of 102118712 is about 467.4140644850.

Adding to 102118712 its reverse (217811201), we get a palindrome (319929913).

The spelling of 102118712 in words is "one hundred two million, one hundred eighteen thousand, seven hundred twelve".