102311012 has 12 divisors (see below), whose sum is σ = 179143020. Its totient is φ = 51127296.

The previous prime is 102311003. The next prime is 102311059. The reversal of 102311012 is 210113201.

It can be written as a sum of positive squares in 2 ways, for example, as 6584356 + 95726656 = 2566^2 + 9784^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102310984 and 102311002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2564 + ... + 14532.

It is an arithmetic number, because the mean of its divisors is an integer number (14928585).

Almost surely, 2^102311012 is an apocalyptic number.

It is an amenable number.

102311012 is a deficient number, since it is larger than the sum of its proper divisors (76832008).

102311012 is a wasteful number, since it uses less digits than its factorization.

102311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14110 (or 14108 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 102311012 is about 10114.8906074164. The cubic root of 102311012 is about 467.7072767073.

Adding to 102311012 its reverse (210113201), we get a palindrome (312424213).

The spelling of 102311012 in words is "one hundred two million, three hundred eleven thousand, twelve".