121010312 has 16 divisors (see below), whose sum is σ = 227614860. Its totient is φ = 60313024.

The previous prime is 121010303. The next prime is 121010321. The reversal of 121010312 is 213010121.

It is an interprime number because it is at equal distance from previous prime (121010303) and next prime (121010321).

It can be written as a sum of positive squares in 2 ways, for example, as 103754596 + 17255716 = 10186^2 + 4154^2 .

It is a super-2 number, since 2×121010312² = 29286991220674688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121010293 and 121010302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21323 + ... + 26394.

Almost surely, 2^121010312 is an apocalyptic number.

It is an amenable number.

121010312 is a deficient number, since it is larger than the sum of its proper divisors (106604548).

121010312 is a wasteful number, since it uses less digits than its factorization.

121010312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48040 (or 48036 counting only the distinct ones).

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

The square root of 121010312 is about 11000.4687172866. The cubic root of 121010312 is about 494.6227946292.

Adding to 121010312 its reverse (213010121), we get a palindrome (334020433).

The spelling of 121010312 in words is "one hundred twenty-one million, ten thousand, three hundred twelve".