1320300031 has 4 divisors (see below), whose sum is σ = 1320393592. Its totient is φ = 1320206472.

The previous prime is 1320300029. The next prime is 1320300049. The reversal of 1320300031 is 1300030231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1320300031 - 2¹ = 1320300029 is a prime.

It is a super-2 number, since 2×1320300031² = 3486384343717201922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320299984 and 1320300020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320300431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20805 + ... + 55438.

It is an arithmetic number, because the mean of its divisors is an integer number (330098398).

Almost surely, 2^1320300031 is an apocalyptic number.

1320300031 is a deficient number, since it is larger than the sum of its proper divisors (93561).

1320300031 is an equidigital number, since it uses as much as digits as its factorization.

1320300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93560.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1320300031 is about 36335.9330553104. The cubic root of 1320300031 is about 1097.0444159072.

Adding to 1320300031 its reverse (1300030231), we get a palindrome (2620330262).

The spelling of 1320300031 in words is "one billion, three hundred twenty million, three hundred thousand, thirty-one".