1001013311 has 8 divisors (see below), whose sum is σ = 1004927040. Its totient is φ = 997107232.

The previous prime is 1001013269. The next prime is 1001013359. The reversal of 1001013311 is 1133101001.

It is a happy number.

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 1001013311 - 2²² = 996819007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001013292 and 1001013301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001013361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427901 + ... + 430233.

It is an arithmetic number, because the mean of its divisors is an integer number (125615880).

Almost surely, 2^1001013311 is an apocalyptic number.

1001013311 is a deficient number, since it is larger than the sum of its proper divisors (3913729).

1001013311 is a wasteful number, since it uses less digits than its factorization.

1001013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1001013311 is about 31638.7943986493. The cubic root of 1001013311 is about 1000.3376563087.

Adding to 1001013311 its reverse (1133101001), we get a palindrome (2134114312).

The spelling of 1001013311 in words is "one billion, one million, thirteen thousand, three hundred eleven".