1241431121 has 6 divisors (see below), whose sum is σ = 1444113810. Its totient is φ = 1064083776.

The previous prime is 1241431111. The next prime is 1241431127. The reversal of 1241431121 is 1211341421.

It can be written as a sum of positive squares in only one way, i.e., 1119571600 + 121859521 = 33460^2 + 11039^2 .

It is not a de Polignac number, because 1241431121 - 2¹⁰ = 1241430097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1241431093 and 1241431102.

It is not an unprimeable number, because it can be changed into a prime (1241431127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12667616 + ... + 12667713.

It is an arithmetic number, because the mean of its divisors is an integer number (240685635).

Almost surely, 2^1241431121 is an apocalyptic number.

It is an amenable number.

1241431121 is a deficient number, since it is larger than the sum of its proper divisors (202682689).

1241431121 is an equidigital number, since it uses as much as digits as its factorization.

1241431121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25335343 (or 25335336 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 1241431121 is about 35233.9484162647. The cubic root of 1241431121 is about 1074.7502202439.

Adding to 1241431121 its reverse (1211341421), we get a palindrome (2452772542).

The spelling of 1241431121 in words is "one billion, two hundred forty-one million, four hundred thirty-one thousand, one hundred twenty-one".