102305332252 has 24 divisors (see below), whose sum is σ = 186830072352. Its totient is φ = 48925588800.

The previous prime is 102305332243. The next prime is 102305332271. The reversal of 102305332252 is 252233503201.

It is a happy number.

It is a super-2 number, since 2×102305332252² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102305332252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2302002 + ... + 2346022.

It is an arithmetic number, because the mean of its divisors is an integer number (7784586348).

Almost surely, 2^102305332252 is an apocalyptic number.

It is an amenable number.

102305332252 is a deficient number, since it is larger than the sum of its proper divisors (84524740100).

102305332252 is a wasteful number, since it uses less digits than its factorization.

102305332252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69309 (or 69307 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 102305332252 its reverse (252233503201), we get a palindrome (354538835453).

The spelling of 102305332252 in words is "one hundred two billion, three hundred five million, three hundred thirty-two thousand, two hundred fifty-two".