242115203535531 has 4 divisors (see below), whose sum is σ = 322820271380712. Its totient is φ = 161410135690352.

The previous prime is 242115203535523. The next prime is 242115203535563. The reversal of 242115203535531 is 135535302511242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242115203535531 - 2³ = 242115203535523 is a prime.

It is a super-2 number, since 2×242115203535531² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242115203535511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40352533922586 + ... + 40352533922591.

It is an arithmetic number, because the mean of its divisors is an integer number (80705067845178).

Almost surely, 2^{242115203535531} is an apocalyptic number.

242115203535531 is a deficient number, since it is larger than the sum of its proper divisors (80705067845181).

242115203535531 is an equidigital number, since it uses as much as digits as its factorization.

242115203535531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80705067845180.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 242115203535531 in words is "two hundred forty-two trillion, one hundred fifteen billion, two hundred three million, five hundred thirty-five thousand, five hundred thirty-one".