1242321411 has 4 divisors (see below), whose sum is σ = 1656428552. Its totient is φ = 828214272.

The previous prime is 1242321407. The next prime is 1242321413. The reversal of 1242321411 is 1141232421.

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

It is not a de Polignac number, because 1242321411 - 2² = 1242321407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242321413) 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, 207053566 + ... + 207053571.

It is an arithmetic number, because the mean of its divisors is an integer number (414107138).

Almost surely, 2^1242321411 is an apocalyptic number.

1242321411 is a deficient number, since it is larger than the sum of its proper divisors (414107141).

1242321411 is an equidigital number, since it uses as much as digits as its factorization.

1242321411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414107140.

The product of its digits is 384, while the sum is 21.

The square root of 1242321411 is about 35246.5801319788. The cubic root of 1242321411 is about 1075.0070772204.

Adding to 1242321411 its reverse (1141232421), we get a palindrome (2383553832).

The spelling of 1242321411 in words is "one billion, two hundred forty-two million, three hundred twenty-one thousand, four hundred eleven".