1321838426200 has 24 divisors (see below), whose sum is σ = 3073274341380. Its totient is φ = 528735370400.

The previous prime is 1321838426189. The next prime is 1321838426203. The reversal of 1321838426200 is 26248381231.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321838426203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3304595866 + ... + 3304596265.

Almost surely, 2^{1321838426200} is an apocalyptic number.

1321838426200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321838426200 is an abundant number, since it is smaller than the sum of its proper divisors (1751435915180).

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

1321838426200 is a wasteful number, since it uses less digits than its factorization.

1321838426200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6609192147 (or 6609192138 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 1321838426200 in words is "one trillion, three hundred twenty-one billion, eight hundred thirty-eight million, four hundred twenty-six thousand, two hundred".