311113001 has 4 divisors (see below), whose sum is σ = 313173504. Its totient is φ = 309052500.

The previous prime is 311112943. The next prime is 311113003. The reversal of 311113001 is 100311113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311113001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311113003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030025 + ... + 1030326.

It is an arithmetic number, because the mean of its divisors is an integer number (78293376).

Almost surely, 2^311113001 is an apocalyptic number.

It is an amenable number.

311113001 is a deficient number, since it is larger than the sum of its proper divisors (2060503).

311113001 is a wasteful number, since it uses less digits than its factorization.

311113001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060502.

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

The square root of 311113001 is about 17638.3956469969. The cubic root of 311113001 is about 677.5989432615.

Adding to 311113001 its reverse (100311113), we get a palindrome (411424114).

The spelling of 311113001 in words is "three hundred eleven million, one hundred thirteen thousand, one".