24232542421 has 2 divisors, whose sum is σ = 24232542422.
Its totient is φ = 24232542420.
The previous prime is 24232542409. The next prime is 24232542539. The reversal of 24232542421 is 12424523242.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 23100960100 + 1131582321 = 151990^2 + 33639^2
It is a cyclic number.
It is not a de Polignac number, because 24232542421 - 27 = 24232542293 is a prime.
It is a super-2 number, since 2×242325424212 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (24232542401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12116271210 + 12116271211.
It is an arithmetic number, because the mean of its divisors is an integer number (12116271211).
Almost surely, 224232542421 is an apocalyptic number.
It is an amenable number.
24232542421 is a deficient number, since it is larger than the sum of its proper divisors (1).
24232542421 is an equidigital number, since it uses as much as digits as its factorization.
24232542421 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 30720, while the sum is 31.
The spelling of 24232542421 in words is "twenty-four billion, two hundred thirty-two million, five hundred forty-two thousand, four hundred twenty-one".