4261243121 has 8 divisors (see below), whose sum is σ = 4380974400. Its totient is φ = 4141752048.

The previous prime is 4261243117. The next prime is 4261243127. The reversal of 4261243121 is 1213421624.

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 4261243121 - 2² = 4261243117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4261243127) 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, 23771 + ... + 95328.

It is an arithmetic number, because the mean of its divisors is an integer number (547621800).

Almost surely, 2^4261243121 is an apocalyptic number.

It is an amenable number.

4261243121 is a deficient number, since it is larger than the sum of its proper divisors (119731279).

4261243121 is a wasteful number, since it uses less digits than its factorization.

4261243121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120103.

The product of its digits is 2304, while the sum is 26.

The square root of 4261243121 is about 65278.1978994519. The cubic root of 4261243121 is about 1621.2330095015.

Adding to 4261243121 its reverse (1213421624), we get a palindrome (5474664745).

The spelling of 4261243121 in words is "four billion, two hundred sixty-one million, two hundred forty-three thousand, one hundred twenty-one".