10311012 has 36 divisors (see below), whose sum is σ = 26771836. Its totient is φ = 3343680.

The previous prime is 10311011. The next prime is 10311019. The reversal of 10311012 is 21011301.

10311012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5875776 + 4435236 = 2424^2 + 2106^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10310985 and 10311003.

It is not an unprimeable number, because it can be changed into a prime (10311011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2539 + ... + 5202.

Almost surely, 2^10311012 is an apocalyptic number.

10311012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10311012 is an abundant number, since it is smaller than the sum of its proper divisors (16460824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10311012 is a wasteful number, since it uses less digits than its factorization.

10311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788 (or 7783 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 10311012 is about 3211.0764550225. The cubic root of 10311012 is about 217.6542227637.

Adding to 10311012 its reverse (21011301), we get a palindrome (31322313).

The spelling of 10311012 in words is "ten million, three hundred eleven thousand, twelve".