1331413241 has 2 divisors, whose sum is σ = 1331413242. Its totient is φ = 1331413240.

The previous prime is 1331413231. The next prime is 1331413273. The reversal of 1331413241 is 1423141331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 774453241 + 556960000 = 27829^2 + 23600^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331413241 - 2³⁰ = 257671417 is a prime.

It is a super-2 number, since 2×1331413241² = 3545322436620248162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1331413231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665706620 + 665706621.

It is an arithmetic number, because the mean of its divisors is an integer number (665706621).

Almost surely, 2^1331413241 is an apocalyptic number.

It is an amenable number.

1331413241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331413241 is an equidigital number, since it uses as much as digits as its factorization.

1331413241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 1331413241 is about 36488.5357475468. The cubic root of 1331413241 is about 1100.1138287164.

Adding to 1331413241 its reverse (1423141331), we get a palindrome (2754554572).

The spelling of 1331413241 in words is "one billion, three hundred thirty-one million, four hundred thirteen thousand, two hundred forty-one".