1320123310 has 96 divisors (see below), whose sum is σ = 2702730240. Its totient is φ = 463657920.

The previous prime is 1320123283. The next prime is 1320123323. The reversal of 1320123310 is 133210231.

It is a super-2 number, since 2×1320123310² = 3485451107210712200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7904847 + ... + 7905013.

It is an arithmetic number, because the mean of its divisors is an integer number (28153440).

Almost surely, 2^1320123310 is an apocalyptic number.

1320123310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320123310 is an abundant number, since it is smaller than the sum of its proper divisors (1382606930).

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

1320123310 is a wasteful number, since it uses less digits than its factorization.

1320123310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1320123310 is about 36333.5012075632. The cubic root of 1320123310 is about 1096.9954675793.

Adding to 1320123310 its reverse (133210231), we get a palindrome (1453333541).

The spelling of 1320123310 in words is "one billion, three hundred twenty million, one hundred twenty-three thousand, three hundred ten".