312101401 has 4 divisors (see below), whose sum is σ = 320536612. Its totient is φ = 303666192.

The previous prime is 312101381. The next prime is 312101423. The reversal of 312101401 is 104101213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115541001 + 196560400 = 10749^2 + 14020^2 .

It is a cyclic number.

It is not a de Polignac number, because 312101401 - 2⁹ = 312100889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312101431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4217550 + ... + 4217623.

It is an arithmetic number, because the mean of its divisors is an integer number (80134153).

Almost surely, 2^312101401 is an apocalyptic number.

It is an amenable number.

312101401 is a deficient number, since it is larger than the sum of its proper divisors (8435211).

312101401 is an equidigital number, since it uses as much as digits as its factorization.

312101401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8435210.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 312101401 is about 17666.3918500638. The cubic root of 312101401 is about 678.3157576167.

Adding to 312101401 its reverse (104101213), we get a palindrome (416202614).

The spelling of 312101401 in words is "three hundred twelve million, one hundred one thousand, four hundred one".