1320240031 has 8 divisors (see below), whose sum is σ = 1479188304. Its totient is φ = 1167779520.

The previous prime is 1320240029. The next prime is 1320240037. The reversal of 1320240031 is 1300420231.

It is a happy number.

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 1320240031 - 2¹ = 1320240029 is a prime.

It is a super-2 number, since 2×1320240031² = 3486067478909761922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320239987 and 1320240014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320240037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1621510 + ... + 1622323.

It is an arithmetic number, because the mean of its divisors is an integer number (184898538).

Almost surely, 2^1320240031 is an apocalyptic number.

1320240031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1320240031 is a deficient number, since it is larger than the sum of its proper divisors (158948273).

1320240031 is a wasteful number, since it uses less digits than its factorization.

1320240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243881.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1320240031 is about 36335.1074169322. The cubic root of 1320240031 is about 1097.0277975476.

Adding to 1320240031 its reverse (1300420231), we get a palindrome (2620660262).

The spelling of 1320240031 in words is "one billion, three hundred twenty million, two hundred forty thousand, thirty-one".