243101431431 has 12 divisors (see below), whose sum is σ = 351257429952. Its totient is φ = 162016428096.

The previous prime is 243101431361. The next prime is 243101431457. The reversal of 243101431431 is 134134101342.

243101431431 is a `hidden beast` number, since 2 + 4 + 310 + 1 + 4 + 314 + 31 = 666.

It is not a de Polignac number, because 243101431431 - 2⁹ = 243101430919 is a prime.

It is a super-2 number, since 2×243101431431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243101431395 and 243101431404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243101031431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4235986 + ... + 4292991.

It is an arithmetic number, because the mean of its divisors is an integer number (29271452496).

Almost surely, 2^243101431431 is an apocalyptic number.

243101431431 is a deficient number, since it is larger than the sum of its proper divisors (108155998521).

243101431431 is a wasteful number, since it uses less digits than its factorization.

243101431431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8532150 (or 8532147 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 243101431431 its reverse (134134101342), we get a palindrome (377235532773).

The spelling of 243101431431 in words is "two hundred forty-three billion, one hundred one million, four hundred thirty-one thousand, four hundred thirty-one".