312401111 has 8 divisors (see below), whose sum is σ = 355618944. Its totient is φ = 271652920.

The previous prime is 312401107. The next prime is 312401143. The reversal of 312401111 is 111104213.

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

It is not a de Polignac number, because 312401111 - 2² = 312401107 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 (312401611) 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, 617141 + ... + 617646.

It is an arithmetic number, because the mean of its divisors is an integer number (44452368).

Almost surely, 2^312401111 is an apocalyptic number.

312401111 is a deficient number, since it is larger than the sum of its proper divisors (43217833).

312401111 is a wasteful number, since it uses less digits than its factorization.

312401111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234821.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 312401111 is about 17674.8723050550. The cubic root of 312401111 is about 678.5328163187.

Adding to 312401111 its reverse (111104213), we get a palindrome (423505324).

The spelling of 312401111 in words is "three hundred twelve million, four hundred one thousand, one hundred eleven".