102442511415 has 32 divisors (see below), whose sum is σ = 165548275200. Its totient is φ = 54091451520.

The previous prime is 102442511393. The next prime is 102442511417. The reversal of 102442511415 is 514115244201.

It is not a de Polignac number, because 102442511415 - 2²⁰ = 102441462839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102442511417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 680085 + ... + 816945.

It is an arithmetic number, because the mean of its divisors is an integer number (5173383600).

Almost surely, 2^102442511415 is an apocalyptic number.

102442511415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102442511415 is a deficient number, since it is larger than the sum of its proper divisors (63105763785).

102442511415 is a wasteful number, since it uses less digits than its factorization.

102442511415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137367.

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 102442511415 its reverse (514115244201), we get a palindrome (616557755616).

The spelling of 102442511415 in words is "one hundred two billion, four hundred forty-two million, five hundred eleven thousand, four hundred fifteen".