312313142 has 4 divisors (see below), whose sum is σ = 468469716. Its totient is φ = 156156570.

The previous prime is 312313121. The next prime is 312313181. The reversal of 312313142 is 241313213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241313213 = 4261 ⋅56633.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78078284 + ... + 78078287.

It is an arithmetic number, because the mean of its divisors is an integer number (117117429).

Almost surely, 2^312313142 is an apocalyptic number.

312313142 is a deficient number, since it is larger than the sum of its proper divisors (156156574).

312313142 is a wasteful number, since it uses less digits than its factorization.

312313142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156156573.

The product of its digits is 432, while the sum is 20.

The square root of 312313142 is about 17672.3835970137. The cubic root of 312313142 is about 678.4691210086.

Adding to 312313142 its reverse (241313213), we get a palindrome (553626355).

The spelling of 312313142 in words is "three hundred twelve million, three hundred thirteen thousand, one hundred forty-two".