43101121 has 4 divisors (see below), whose sum is σ = 49258432. Its totient is φ = 36943812.

The previous prime is 43101119. The next prime is 43101131. The reversal of 43101121 is 12110134.

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 43101121 - 2¹ = 43101119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43101131) 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, 3078645 + ... + 3078658.

It is an arithmetic number, because the mean of its divisors is an integer number (12314608).

Almost surely, 2^43101121 is an apocalyptic number.

It is an amenable number.

43101121 is a deficient number, since it is larger than the sum of its proper divisors (6157311).

43101121 is an equidigital number, since it uses as much as digits as its factorization.

43101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157310.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 43101121 is about 6565.1444005444. The cubic root of 43101121 is about 350.6142167156.

Adding to 43101121 its reverse (12110134), we get a palindrome (55211255).

It can be divided in two parts, 4 and 3101121, that multiplied together give a square (12404484 = 3522²).

The spelling of 43101121 in words is "forty-three million, one hundred one thousand, one hundred twenty-one".