102143510266 has 48 divisors (see below), whose sum is σ = 181376526240. Its totient is φ = 43008809760.

The previous prime is 102143510257. The next prime is 102143510269. The reversal of 102143510266 is 662015341201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102143510269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1437565 + ... + 1506943.

It is an arithmetic number, because the mean of its divisors is an integer number (3778677630).

Almost surely, 2^102143510266 is an apocalyptic number.

102143510266 is a deficient number, since it is larger than the sum of its proper divisors (79233015974).

102143510266 is a wasteful number, since it uses less digits than its factorization.

102143510266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69659 (or 69652 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 102143510266 its reverse (662015341201), we get a palindrome (764158851467).

The spelling of 102143510266 in words is "one hundred two billion, one hundred forty-three million, five hundred ten thousand, two hundred sixty-six".