10121312 has 12 divisors (see below), whose sum is σ = 19926396. Its totient is φ = 5060640.

The previous prime is 10121299. The next prime is 10121317. The reversal of 10121312 is 21312101.

It is a junction number, because it is equal to n+sod(n) for n = 10121293 and 10121302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158114 + ... + 158177.

It is an arithmetic number, because the mean of its divisors is an integer number (1660533).

Almost surely, 2^10121312 is an apocalyptic number.

It is an amenable number.

10121312 is a deficient number, since it is larger than the sum of its proper divisors (9805084).

10121312 is an equidigital number, since it uses as much as digits as its factorization.

10121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316301 (or 316293 counting only the distinct ones).

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

The square root of 10121312 is about 3181.4009492675. The cubic root of 10121312 is about 216.3111656085.

Adding to 10121312 its reverse (21312101), we get a palindrome (31433413).

It can be divided in two parts, 101 and 21312, that multiplied together give a palindrome (2152512).

The spelling of 10121312 in words is "ten million, one hundred twenty-one thousand, three hundred twelve".