243054430031 has 8 divisors (see below), whose sum is σ = 277871416320. Its totient is φ = 208261174968.

The previous prime is 243054430019. The next prime is 243054430063. The reversal of 243054430031 is 130034450342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-243054430031 is a prime.

It is a super-2 number, since 2×243054430031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243054429976 and 243054430003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243054430831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5910851 + ... + 5951828.

It is an arithmetic number, because the mean of its divisors is an integer number (34733927040).

Almost surely, 2^243054430031 is an apocalyptic number.

243054430031 is a deficient number, since it is larger than the sum of its proper divisors (34816986289).

243054430031 is a wasteful number, since it uses less digits than its factorization.

243054430031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11865613.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 243054430031 its reverse (130034450342), we get a palindrome (373088880373).

The spelling of 243054430031 in words is "two hundred forty-three billion, fifty-four million, four hundred thirty thousand, thirty-one".