3240423121 has 4 divisors (see below), whose sum is σ = 3489686452. Its totient is φ = 2991159792.

The previous prime is 3240423113. The next prime is 3240423139. The reversal of 3240423121 is 1213240423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 246144721 + 2994278400 = 15689^2 + 54720^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240423121 - 2³ = 3240423113 is a prime.

It is a super-2 number, since 2×3240423121² = 21000684006222761282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3240423092 and 3240423101.

It is not an unprimeable number, because it can be changed into a prime (3240427121) 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, 124631646 + ... + 124631671.

It is an arithmetic number, because the mean of its divisors is an integer number (872421613).

Almost surely, 2^3240423121 is an apocalyptic number.

It is an amenable number.

3240423121 is a deficient number, since it is larger than the sum of its proper divisors (249263331).

3240423121 is a wasteful number, since it uses less digits than its factorization.

3240423121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249263330.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3240423121 is about 56924.7145008212. The cubic root of 3240423121 is about 1479.7916557525.

Adding to 3240423121 its reverse (1213240423), we get a palindrome (4453663544).

The spelling of 3240423121 in words is "three billion, two hundred forty million, four hundred twenty-three thousand, one hundred twenty-one".