242431568109381 has 16 divisors (see below), whose sum is σ = 369584231284224. Its totient is φ = 138470562536304.

The previous prime is 242431568109299. The next prime is 242431568109383. The reversal of 242431568109381 is 183901865134242.

It is a happy number.

It is not a de Polignac number, because 242431568109381 - 2⁷ = 242431568109253 is a prime.

It is a super-2 number, since 2×242431568109381² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242431568109383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2573372511 + ... + 2573466716.

It is an arithmetic number, because the mean of its divisors is an integer number (23099014455264).

Almost surely, 2^{242431568109381} is an apocalyptic number.

242431568109381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

242431568109381 is a deficient number, since it is larger than the sum of its proper divisors (127152663174843).

242431568109381 is a wasteful number, since it uses less digits than its factorization.

242431568109381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146841480.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 242431568109381 in words is "two hundred forty-two trillion, four hundred thirty-one billion, five hundred sixty-eight million, one hundred nine thousand, three hundred eighty-one".