311101601 has 8 divisors (see below), whose sum is σ = 321000960. Its totient is φ = 301339008.

The previous prime is 311101597. The next prime is 311101621. The reversal of 311101601 is 106101113.

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 311101601 - 2² = 311101597 is a prime.

It is a super-2 number, since 2×311101601² = 193568412289526402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311101621) 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, 29561 + ... + 38678.

It is an arithmetic number, because the mean of its divisors is an integer number (40125120).

Almost surely, 2^311101601 is an apocalyptic number.

It is an amenable number.

311101601 is a deficient number, since it is larger than the sum of its proper divisors (9899359).

311101601 is an equidigital number, since it uses as much as digits as its factorization.

311101601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68383.

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

The square root of 311101601 is about 17638.0724853936. The cubic root of 311101601 is about 677.5906668236.

Adding to 311101601 its reverse (106101113), we get a palindrome (417202714).

The spelling of 311101601 in words is "three hundred eleven million, one hundred one thousand, six hundred one".