243130131004 has 24 divisors (see below), whose sum is σ = 450537277680. Its totient is φ = 114406192896.

The previous prime is 243130131001. The next prime is 243130131029. The reversal of 243130131004 is 400131031342.

It is a super-2 number, since 2×243130131004² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243130131001) 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, 920454 + ... + 1154770.

It is an arithmetic number, because the mean of its divisors is an integer number (18772386570).

Almost surely, 2^243130131004 is an apocalyptic number.

It is an amenable number.

243130131004 is a deficient number, since it is larger than the sum of its proper divisors (207407146676).

243130131004 is a wasteful number, since it uses less digits than its factorization.

243130131004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249597 (or 249595 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 243130131004 its reverse (400131031342), we get a palindrome (643261162346).

The spelling of 243130131004 in words is "two hundred forty-three billion, one hundred thirty million, one hundred thirty-one thousand, four".