312401343 has 4 divisors (see below), whose sum is σ = 416535128. Its totient is φ = 208267560.

The previous prime is 312401329. The next prime is 312401347. The reversal of 312401343 is 343104213.

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

It is not a de Polignac number, because 312401343 - 2⁶ = 312401279 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 (312401347) 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, 52066888 + ... + 52066893.

It is an arithmetic number, because the mean of its divisors is an integer number (104133782).

Almost surely, 2^312401343 is an apocalyptic number.

312401343 is a deficient number, since it is larger than the sum of its proper divisors (104133785).

312401343 is a wasteful number, since it uses less digits than its factorization.

312401343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104133784.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 312401343 is about 17674.8788680432. The cubic root of 312401343 is about 678.5329842860.

Adding to 312401343 its reverse (343104213), we get a palindrome (655505556).

The spelling of 312401343 in words is "three hundred twelve million, four hundred one thousand, three hundred forty-three".