1311241433 has 8 divisors (see below), whose sum is σ = 1461445920. Its totient is φ = 1169156160.

The previous prime is 1311241427. The next prime is 1311241453. The reversal of 1311241433 is 3341421131.

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 1311241433 - 2⁶ = 1311241369 is a prime.

It is a super-4 number, since 4×1311241433⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311241399 and 1311241408.

It is not an unprimeable number, because it can be changed into a prime (1311241423) 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, 2029463 + ... + 2030108.

It is an arithmetic number, because the mean of its divisors is an integer number (182680740).

Almost surely, 2^1311241433 is an apocalyptic number.

It is an amenable number.

1311241433 is a deficient number, since it is larger than the sum of its proper divisors (150204487).

1311241433 is a wasteful number, since it uses less digits than its factorization.

1311241433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059607.

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

The square root of 1311241433 is about 36211.0678246306. The cubic root of 1311241433 is about 1094.5297099871.

Adding to 1311241433 its reverse (3341421131), we get a palindrome (4652662564).

It can be divided in two parts, 13112 and 41433, that added together give a palindrome (54545).

The spelling of 1311241433 in words is "one billion, three hundred eleven million, two hundred forty-one thousand, four hundred thirty-three".