43430102421 has 4 divisors (see below), whose sum is σ = 57906803232. Its totient is φ = 28953401612.

The previous prime is 43430102411. The next prime is 43430102423. The reversal of 43430102421 is 12420103434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43430102421 - 2¹⁰ = 43430101397 is a prime.

It is a super-2 number, since 2×43430102421² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43430102391 and 43430102400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43430102423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7238350401 + ... + 7238350406.

It is an arithmetic number, because the mean of its divisors is an integer number (14476700808).

Almost surely, 2^43430102421 is an apocalyptic number.

It is an amenable number.

43430102421 is a deficient number, since it is larger than the sum of its proper divisors (14476700811).

43430102421 is a wasteful number, since it uses less digits than its factorization.

43430102421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14476700810.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 43430102421 its reverse (12420103434), we get a palindrome (55850205855).

The spelling of 43430102421 in words is "forty-three billion, four hundred thirty million, one hundred two thousand, four hundred twenty-one".