1320101838 has 24 divisors (see below), whose sum is σ = 3120241176. Its totient is φ = 400030800.

The previous prime is 1320101801. The next prime is 1320101843. The reversal of 1320101838 is 8381010231.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3333393 + ... + 3333788.

It is an arithmetic number, because the mean of its divisors is an integer number (130010049).

Almost surely, 2^1320101838 is an apocalyptic number.

1320101838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1320101838 is an abundant number, since it is smaller than the sum of its proper divisors (1800139338).

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

1320101838 is a wasteful number, since it uses less digits than its factorization.

1320101838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667200 (or 6667197 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1320101838 is about 36333.2057214884. The cubic root of 1320101838 is about 1096.9895199495.

The spelling of 1320101838 in words is "one billion, three hundred twenty million, one hundred one thousand, eight hundred thirty-eight".