1031000312 has 8 divisors (see below), whose sum is σ = 1933125600. Its totient is φ = 515500152.

The previous prime is 1031000303. The next prime is 1031000329. The reversal of 1031000312 is 2130001301.

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

It is a junction number, because it is equal to n+sod(n) for n = 1031000293 and 1031000302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64437512 + ... + 64437527.

It is an arithmetic number, because the mean of its divisors is an integer number (241640700).

Almost surely, 2^1031000312 is an apocalyptic number.

It is an amenable number.

1031000312 is a deficient number, since it is larger than the sum of its proper divisors (902125288).

1031000312 is a wasteful number, since it uses less digits than its factorization.

1031000312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128875045 (or 128875041 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1031000312 is about 32109.1935744266. The cubic root of 1031000312 is about 1010.2284592495.

Adding to 1031000312 its reverse (2130001301), we get a palindrome (3161001613).

The spelling of 1031000312 in words is "one billion, thirty-one million, three hundred twelve", and thus it is an aban number.