1012001311 has 8 divisors (see below), whose sum is σ = 1062483840. Its totient is φ = 962059032.

The previous prime is 1012001281. The next prime is 1012001317. The reversal of 1012001311 is 1131002101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012001311 - 2¹⁹ = 1011477023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012001317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131221 + ... + 138718.

It is an arithmetic number, because the mean of its divisors is an integer number (132810480).

Almost surely, 2^1012001311 is an apocalyptic number.

1012001311 is a deficient number, since it is larger than the sum of its proper divisors (50482529).

1012001311 is a wasteful number, since it uses less digits than its factorization.

1012001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270125.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1012001311 is about 31811.9680466330. The cubic root of 1012001311 is about 1003.9845393592.

Adding to 1012001311 its reverse (1131002101), we get a palindrome (2143003412).

The spelling of 1012001311 in words is "one billion, twelve million, one thousand, three hundred eleven".