311100013121 has 8 divisors (see below), whose sum is σ = 324961828224. Its totient is φ = 297266175360.

The previous prime is 311100013117. The next prime is 311100013123. The reversal of 311100013121 is 121310001113.

It is a happy number.

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

It is not a de Polignac number, because 311100013121 - 2² = 311100013117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311100013096 and 311100013105.

It is not an unprimeable number, because it can be changed into a prime (311100013123) 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, 6971600 + ... + 7016081.

It is an arithmetic number, because the mean of its divisors is an integer number (40620228528).

Almost surely, 2^311100013121 is an apocalyptic number.

It is an amenable number.

311100013121 is a deficient number, since it is larger than the sum of its proper divisors (13861815103).

311100013121 is a wasteful number, since it uses less digits than its factorization.

311100013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13988671.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 311100013121 its reverse (121310001113), we get a palindrome (432410014234).

The spelling of 311100013121 in words is "three hundred eleven billion, one hundred million, thirteen thousand, one hundred twenty-one".