102010312 has 8 divisors (see below), whose sum is σ = 191269350. Its totient is φ = 51005152.

The previous prime is 102010309. The next prime is 102010331. The reversal of 102010312 is 213010201.

It can be written as a sum of positive squares in only one way, i.e., 75446596 + 26563716 = 8686^2 + 5154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×102010312² = 20812207508674688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375637 + ... + 6375652.

Almost surely, 2^102010312 is an apocalyptic number.

It is an amenable number.

102010312 is a deficient number, since it is larger than the sum of its proper divisors (89259038).

102010312 is a wasteful number, since it uses less digits than its factorization.

102010312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12751295 (or 12751291 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 102010312 is about 10100.0154455327. The cubic root of 102010312 is about 467.2486177474.

Adding to 102010312 its reverse (213010201), we get a palindrome (315020513).

The spelling of 102010312 in words is "one hundred two million, ten thousand, three hundred twelve".