102312155408 has 40 divisors (see below), whose sum is σ = 199758464640. Its totient is φ = 50761964160.

The previous prime is 102312155401. The next prime is 102312155419. The reversal of 102312155408 is 804551213201.

It is not an unprimeable number, because it can be changed into a prime (102312155401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4750841 + ... + 4772327.

It is an arithmetic number, because the mean of its divisors is an integer number (4993961616).

Almost surely, 2^102312155408 is an apocalyptic number.

It is an amenable number.

102312155408 is a deficient number, since it is larger than the sum of its proper divisors (97446309232).

102312155408 is a wasteful number, since it uses less digits than its factorization.

102312155408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23775 (or 23769 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 102312155408 its reverse (804551213201), we get a palindrome (906863368609).

The spelling of 102312155408 in words is "one hundred two billion, three hundred twelve million, one hundred fifty-five thousand, four hundred eight".