243312342442 has 32 divisors (see below), whose sum is σ = 400748342400. Its totient is φ = 110099545920.

The previous prime is 243312342439. The next prime is 243312342463. The reversal of 243312342442 is 244243213342.

It is a super-2 number, since 2×243312342442² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243312342398 and 243312342407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1864717 + ... + 1990927.

It is an arithmetic number, because the mean of its divisors is an integer number (12523385700).

Almost surely, 2^243312342442 is an apocalyptic number.

243312342442 is a deficient number, since it is larger than the sum of its proper divisors (157435999958).

243312342442 is a wasteful number, since it uses less digits than its factorization.

243312342442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127678.

The product of its digits is 110592, while the sum is 34.

Adding to 243312342442 its reverse (244243213342), we get a palindrome (487555555784).

The spelling of 243312342442 in words is "two hundred forty-three billion, three hundred twelve million, three hundred forty-two thousand, four hundred forty-two".