243134051642 has 16 divisors (see below), whose sum is σ = 366093051840. Its totient is φ = 121103913888.

The previous prime is 243134051639. The next prime is 243134051651. The reversal of 243134051642 is 246150431342.

It is a super-3 number, since 3×243134051642³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334853 + ... + 773559.

It is an arithmetic number, because the mean of its divisors is an integer number (22880815740).

Almost surely, 2^243134051642 is an apocalyptic number.

243134051642 is a deficient number, since it is larger than the sum of its proper divisors (122959000198).

243134051642 is a wasteful number, since it uses less digits than its factorization.

243134051642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439765.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 243134051642 its reverse (246150431342), we get a palindrome (489284482984).

The spelling of 243134051642 in words is "two hundred forty-three billion, one hundred thirty-four million, fifty-one thousand, six hundred forty-two".