102645450371 has 4 divisors (see below), whose sum is σ = 105032553912. Its totient is φ = 100258346832.

The previous prime is 102645450353. The next prime is 102645450389. The reversal of 102645450371 is 173054546201.

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

It is an interprime number because it is at equal distance from previous prime (102645450353) and next prime (102645450389).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102645450371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102645450301) 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, 1193551706 + ... + 1193551791.

It is an arithmetic number, because the mean of its divisors is an integer number (26258138478).

Almost surely, 2^102645450371 is an apocalyptic number.

102645450371 is a deficient number, since it is larger than the sum of its proper divisors (2387103541).

102645450371 is an equidigital number, since it uses as much as digits as its factorization.

102645450371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387103540.

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 102645450371 its reverse (173054546201), we get a palindrome (275699996572).

The spelling of 102645450371 in words is "one hundred two billion, six hundred forty-five million, four hundred fifty thousand, three hundred seventy-one".