312112426 has 4 divisors (see below), whose sum is σ = 468168642. Its totient is φ = 156056212.

The previous prime is 312112421. The next prime is 312112429. The reversal of 312112426 is 624211213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624211213 = 149 ⋅4189337.

It can be written as a sum of positive squares in only one way, i.e., 165096801 + 147015625 = 12849^2 + 12125^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312112397 and 312112406.

It is not an unprimeable number, because it can be changed into a prime (312112421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78028105 + ... + 78028108.

Almost surely, 2^312112426 is an apocalyptic number.

312112426 is a deficient number, since it is larger than the sum of its proper divisors (156056216).

312112426 is a wasteful number, since it uses less digits than its factorization.

312112426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156056215.

The product of its digits is 576, while the sum is 22.

The square root of 312112426 is about 17666.7038804640. The cubic root of 312112426 is about 678.3237447038.

Adding to 312112426 its reverse (624211213), we get a palindrome (936323639).

The spelling of 312112426 in words is "three hundred twelve million, one hundred twelve thousand, four hundred twenty-six".