243421064031 has 16 divisors (see below), whose sum is σ = 341722074240. Its totient is φ = 153704305440.

The previous prime is 243421063987. The next prime is 243421064053. The reversal of 243421064031 is 130460124342.

It is not a de Polignac number, because 243421064031 - 2⁶ = 243421063967 is a prime.

It is a super-2 number, since 2×243421064031² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243421064031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243421064071) 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, 239025 + ... + 737546.

It is an arithmetic number, because the mean of its divisors is an integer number (21357629640).

Almost surely, 2^243421064031 is an apocalyptic number.

243421064031 is a deficient number, since it is larger than the sum of its proper divisors (98301010209).

243421064031 is a wasteful number, since it uses less digits than its factorization.

243421064031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980966.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 243421064031 its reverse (130460124342), we get a palindrome (373881188373).

The spelling of 243421064031 in words is "two hundred forty-three billion, four hundred twenty-one million, sixty-four thousand, thirty-one".