243101031423 has 16 divisors (see below), whose sum is σ = 335326558080. Its totient is φ = 156471922656.

The previous prime is 243101031361. The next prime is 243101031427. The reversal of 243101031423 is 324130101342.

It is a happy number.

It is not a de Polignac number, because 243101031423 - 2²¹ = 243098934271 is a prime.

It is a super-2 number, since 2×243101031423² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243101031393 and 243101031402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243101031427) 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, 2558736 + ... + 2652042.

It is an arithmetic number, because the mean of its divisors is an integer number (20957909880).

Almost surely, 2^243101031423 is an apocalyptic number.

243101031423 is a deficient number, since it is larger than the sum of its proper divisors (92225526657).

243101031423 is a wasteful number, since it uses less digits than its factorization.

243101031423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123286.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 243101031423 its reverse (324130101342), we get a palindrome (567231132765).

The spelling of 243101031423 in words is "two hundred forty-three billion, one hundred one million, thirty-one thousand, four hundred twenty-three".