312031101 has 8 divisors (see below), whose sum is σ = 427285984. Its totient is φ = 202398480.

The previous prime is 312030997. The next prime is 312031121. The reversal of 312031101 is 101130213.

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

It is not a de Polignac number, because 312031101 - 2⁷ = 312030973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405435 + ... + 1405656.

It is an arithmetic number, because the mean of its divisors is an integer number (53410748).

Almost surely, 2^312031101 is an apocalyptic number.

It is an amenable number.

312031101 is a deficient number, since it is larger than the sum of its proper divisors (115254883).

312031101 is a wasteful number, since it uses less digits than its factorization.

312031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811131.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 312031101 is about 17664.4020844183. The cubic root of 312031101 is about 678.2648241932.

Adding to 312031101 its reverse (101130213), we get a palindrome (413161314).

The spelling of 312031101 in words is "three hundred twelve million, thirty-one thousand, one hundred one".