102110420315 has 4 divisors (see below), whose sum is σ = 122532504384. Its totient is φ = 81688336248.

The previous prime is 102110420311. The next prime is 102110420317. The reversal of 102110420315 is 513024011201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102110420315 - 2² = 102110420311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102110420311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10211042027 + ... + 10211042036.

It is an arithmetic number, because the mean of its divisors is an integer number (30633126096).

Almost surely, 2^102110420315 is an apocalyptic number.

102110420315 is a deficient number, since it is larger than the sum of its proper divisors (20422084069).

102110420315 is an equidigital number, since it uses as much as digits as its factorization.

102110420315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20422084068.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 102110420315 its reverse (513024011201), we get a palindrome (615134431516).

The spelling of 102110420315 in words is "one hundred two billion, one hundred ten million, four hundred twenty thousand, three hundred fifteen".