1320223710 has 64 divisors (see below), whose sum is σ = 3429619200. Its totient is φ = 323326080.

The previous prime is 1320223687. The next prime is 1320223733. The reversal of 1320223710 is 173220231.

It is an interprime number because it is at equal distance from previous prime (1320223687) and next prime (1320223733).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69105 + ... + 86115.

It is an arithmetic number, because the mean of its divisors is an integer number (53587800).

Almost surely, 2^1320223710 is an apocalyptic number.

1320223710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320223710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714809600).

1320223710 is an abundant number, since it is smaller than the sum of its proper divisors (2109395490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320223710 is a wasteful number, since it uses less digits than its factorization.

1320223710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17233.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1320223710 is about 36334.8828262869. The cubic root of 1320223710 is about 1097.0232769897.

Adding to 1320223710 its reverse (173220231), we get a palindrome (1493443941).

The spelling of 1320223710 in words is "one billion, three hundred twenty million, two hundred twenty-three thousand, seven hundred ten".