243241201031 has 32 divisors (see below), whose sum is σ = 268927262208. Its totient is φ = 219077913600.

The previous prime is 243241201001. The next prime is 243241201033. The reversal of 243241201031 is 130102142342.

It is a de Polignac number, because none of the positive numbers 2^k-243241201031 is a prime.

It is a super-2 number, since 2×243241201031² (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 = 243241200988 and 243241201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243241201033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8042720 + ... + 8072906.

It is an arithmetic number, because the mean of its divisors is an integer number (8403976944).

Almost surely, 2^243241201031 is an apocalyptic number.

243241201031 is a deficient number, since it is larger than the sum of its proper divisors (25686061177).

243241201031 is a wasteful number, since it uses less digits than its factorization.

243241201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30471.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 243241201031 its reverse (130102142342), we get a palindrome (373343343373).

The spelling of 243241201031 in words is "two hundred forty-three billion, two hundred forty-one million, two hundred one thousand, thirty-one".