312310233142 has 4 divisors (see below), whose sum is σ = 468465349716. Its totient is φ = 156155116570.

The previous prime is 312310233139. The next prime is 312310233143. The reversal of 312310233142 is 241332013213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241332013213 = 200033 ⋅1206461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312310233143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78077558284 + ... + 78077558287.

It is an arithmetic number, because the mean of its divisors is an integer number (117116337429).

Almost surely, 2^312310233142 is an apocalyptic number.

312310233142 is a deficient number, since it is larger than the sum of its proper divisors (156155116574).

312310233142 is a wasteful number, since it uses less digits than its factorization.

312310233142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156155116573.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 312310233142 its reverse (241332013213), we get a palindrome (553642246355).

The spelling of 312310233142 in words is "three hundred twelve billion, three hundred ten million, two hundred thirty-three thousand, one hundred forty-two".