102312030545 has 24 divisors (see below), whose sum is σ = 124882305336. Its totient is φ = 80467089408.

The previous prime is 102312030533. The next prime is 102312030571. The reversal of 102312030545 is 545030213201.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 49423069969 + 52888960576 = 222313^2 + 229976^2 .

It is not a de Polignac number, because 102312030545 - 2¹⁶ = 102311965009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8440409 + ... + 8452521.

It is an arithmetic number, because the mean of its divisors is an integer number (5203429389).

Almost surely, 2^102312030545 is an apocalyptic number.

It is an amenable number.

102312030545 is a deficient number, since it is larger than the sum of its proper divisors (22570274791).

102312030545 is an equidigital number, since it uses as much as digits as its factorization.

102312030545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12581 (or 12508 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 102312030545 its reverse (545030213201), we get a palindrome (647342243746).

The spelling of 102312030545 in words is "one hundred two billion, three hundred twelve million, thirty thousand, five hundred forty-five".