102312010105 has 32 divisors (see below), whose sum is σ = 127282350240. Its totient is φ = 78906746880.

The previous prime is 102312010093. The next prime is 102312010111. The reversal of 102312010105 is 501010213201.

It can be written as a sum of positive squares in 16 ways, for example, as 27972897001 + 74339113104 = 167251^2 + 272652^2 .

It is not a de Polignac number, because 102312010105 - 2²¹ = 102309912953 is a prime.

It is a super-2 number, since 2×102312010105² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5193975 + ... + 5213635.

It is an arithmetic number, because the mean of its divisors is an integer number (3977573445).

Almost surely, 2^102312010105 is an apocalyptic number.

It is an amenable number.

102312010105 is a deficient number, since it is larger than the sum of its proper divisors (24970340135).

102312010105 is a wasteful number, since it uses less digits than its factorization.

102312010105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20061.

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 102312010105 its reverse (501010213201), we get a palindrome (603322223306).

The spelling of 102312010105 in words is "one hundred two billion, three hundred twelve million, ten thousand, one hundred five".