312143104 has 72 divisors (see below), whose sum is σ = 766908800. Its totient is φ = 123475968.

The previous prime is 312143101. The next prime is 312143107. The reversal of 312143104 is 401341213.

It is an interprime number because it is at equal distance from previous prime (312143101) and next prime (312143107).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312143101) 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, 16597 + ... + 29995.

Almost surely, 2^312143104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312143104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383454400).

312143104 is an abundant number, since it is smaller than the sum of its proper divisors (454765696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312143104 is a wasteful number, since it uses less digits than its factorization.

312143104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435 (or 13421 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 312143104 is about 17667.5721025839. The cubic root of 312143104 is about 678.3459684629.

Adding to 312143104 its reverse (401341213), we get a palindrome (713484317).

It can be divided in two parts, 3121 and 43104, that added together give a square (46225 = 215²).

The spelling of 312143104 in words is "three hundred twelve million, one hundred forty-three thousand, one hundred four".