243142020311432 has 48 divisors (see below), whose sum is σ = 506734025471100. Its totient is φ = 109277312460800.

The previous prime is 243142020311321. The next prime is 243142020311467. The reversal of 243142020311432 is 234113020241342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 242682371566756 + 459648744676 = 15578266^2 + 677974^2 .

It is a super-2 number, since 2×243142020311432² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1411036169 + ... + 1411208472.

Almost surely, 2^{243142020311432} is an apocalyptic number.

243142020311432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243142020311432 is an abundant number, since it is smaller than the sum of its proper divisors (263592005159668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243142020311432 is a wasteful number, since it uses less digits than its factorization.

243142020311432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822244758 (or 2822244743 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 243142020311432 its reverse (234113020241342), we get a palindrome (477255040552774).

The spelling of 243142020311432 in words is "two hundred forty-three trillion, one hundred forty-two billion, twenty million, three hundred eleven thousand, four hundred thirty-two".