1311010028 has 12 divisors (see below), whose sum is σ = 2394018480. Its totient is φ = 627004752.

The previous prime is 1311010021. The next prime is 1311010033. The reversal of 1311010028 is 8200101131.

It is a junction number, because it is equal to n+sod(n) for n = 1311009988 and 1311010015.

It is not an unprimeable number, because it can be changed into a prime (1311010021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7124963 + ... + 7125146.

It is an arithmetic number, because the mean of its divisors is an integer number (199501540).

Almost surely, 2^1311010028 is an apocalyptic number.

It is an amenable number.

1311010028 is a deficient number, since it is larger than the sum of its proper divisors (1083008452).

1311010028 is a wasteful number, since it uses less digits than its factorization.

1311010028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14250136 (or 14250134 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1311010028 is about 36207.8724589004. The cubic root of 1311010028 is about 1094.4653194683.

Adding to 1311010028 its reverse (8200101131), we get a palindrome (9511111159).

The spelling of 1311010028 in words is "one billion, three hundred eleven million, ten thousand, twenty-eight".