312340023242 has 12 divisors (see below), whose sum is σ = 507321517590. Its totient is φ = 144156933648.

The previous prime is 312340023211. The next prime is 312340023293. The reversal of 312340023242 is 242320043213.

It can be written as a sum of positive squares in 3 ways, for example, as 215350755481 + 96989267761 = 464059^2 + 311431^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462041117 + ... + 462041792.

Almost surely, 2^312340023242 is an apocalyptic number.

312340023242 is a deficient number, since it is larger than the sum of its proper divisors (194981494348).

312340023242 is a wasteful number, since it uses less digits than its factorization.

312340023242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924082937 (or 924082924 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 312340023242 its reverse (242320043213), we get a palindrome (554660066455).

The spelling of 312340023242 in words is "three hundred twelve billion, three hundred forty million, twenty-three thousand, two hundred forty-two".