312401109 has 4 divisors (see below), whose sum is σ = 416534816. Its totient is φ = 208267404.

The previous prime is 312401107. The next prime is 312401143. The reversal of 312401109 is 901104213.

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 not a de Polignac number, because 312401109 - 2¹ = 312401107 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312401107) 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 3 ways as a sum of consecutive naturals, for example, 52066849 + ... + 52066854.

It is an arithmetic number, because the mean of its divisors is an integer number (104133704).

Almost surely, 2^312401109 is an apocalyptic number.

It is an amenable number.

312401109 is a deficient number, since it is larger than the sum of its proper divisors (104133707).

312401109 is a wasteful number, since it uses less digits than its factorization.

312401109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104133706.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 312401109 is about 17674.8722484775. The cubic root of 312401109 is about 678.5328148707.

The spelling of 312401109 in words is "three hundred twelve million, four hundred one thousand, one hundred nine".