311105013 has 8 divisors (see below), whose sum is σ = 416273568. Its totient is φ = 206669904.

The previous prime is 311105009. The next prime is 311105027. The reversal of 311105013 is 310501113.

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

It is not a de Polignac number, because 311105013 - 2² = 311105009 is a prime.

It is a super-2 number, since 2×311105013² = 193572658227460338, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311104983 and 311105001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311105413) 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, 182370 + ... + 184067.

It is an arithmetic number, because the mean of its divisors is an integer number (52034196).

Almost surely, 2^311105013 is an apocalyptic number.

It is an amenable number.

311105013 is a deficient number, since it is larger than the sum of its proper divisors (105168555).

311105013 is a wasteful number, since it uses less digits than its factorization.

311105013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366723.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 311105013 is about 17638.1692077154. The cubic root of 311105013 is about 677.5931439682.

Adding to 311105013 its reverse (310501113), we get a palindrome (621606126).

The spelling of 311105013 in words is "three hundred eleven million, one hundred five thousand, thirteen".