10102005243 has 24 divisors (see below), whose sum is σ = 15932180160. Its totient is φ = 6117093360.

The previous prime is 10102005239. The next prime is 10102005307. The reversal of 10102005243 is 34250020101.

It is not a de Polignac number, because 10102005243 - 2² = 10102005239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10102005343) 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, 71268 + ... + 159006.

It is an arithmetic number, because the mean of its divisors is an integer number (663840840).

Almost surely, 2^10102005243 is an apocalyptic number.

10102005243 is a deficient number, since it is larger than the sum of its proper divisors (5830174917).

10102005243 is a wasteful number, since it uses less digits than its factorization.

10102005243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88919 (or 88916 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 10102005243 its reverse (34250020101), we get a palindrome (44352025344).

The spelling of 10102005243 in words is "ten billion, one hundred two million, five thousand, two hundred forty-three".