1366042331 has 8 divisors (see below), whose sum is σ = 1406146224. Its totient is φ = 1326106080.

The previous prime is 1366042313. The next prime is 1366042393. The reversal of 1366042331 is 1332406631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1366042331 is a prime.

It is a super-2 number, since 2×1366042331² = 3732143300167827122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1366042294 and 1366042303.

It is not an unprimeable number, because it can be changed into a prime (1366042231) 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, 25280 + ... + 58061.

It is an arithmetic number, because the mean of its divisors is an integer number (175768278).

Almost surely, 2^1366042331 is an apocalyptic number.

1366042331 is a deficient number, since it is larger than the sum of its proper divisors (40103893).

1366042331 is an equidigital number, since it uses as much as digits as its factorization.

1366042331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83821.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 1366042331 is about 36960.0098890679. The cubic root of 1366042331 is about 1109.5700336712.

Adding to 1366042331 its reverse (1332406631), we get a palindrome (2698448962).

The spelling of 1366042331 in words is "one billion, three hundred sixty-six million, forty-two thousand, three hundred thirty-one".