21432332141 has 8 divisors (see below), whose sum is σ = 23393047968. Its totient is φ = 19473670000.

The previous prime is 21432332059. The next prime is 21432332171. The reversal of 21432332141 is 14123323412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21432332141 - 2²² = 21428137837 is a prime.

It is a super-2 number, since 2×21432332141² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21432332141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21432332171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491555 + ... + 533376.

It is an arithmetic number, because the mean of its divisors is an integer number (2924130996).

Almost surely, 2^21432332141 is an apocalyptic number.

It is an amenable number.

21432332141 is a deficient number, since it is larger than the sum of its proper divisors (1960715827).

21432332141 is a wasteful number, since it uses less digits than its factorization.

21432332141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026843.

The product of its digits is 3456, while the sum is 26.

Adding to 21432332141 its reverse (14123323412), we get a palindrome (35555655553).

The spelling of 21432332141 in words is "twenty-one billion, four hundred thirty-two million, three hundred thirty-two thousand, one hundred forty-one".