1421320120 has 32 divisors (see below), whose sum is σ = 3488695920. Its totient is φ = 516843520.

The previous prime is 1421320097. The next prime is 1421320127. The reversal of 1421320120 is 210231241.

It is a junction number, because it is equal to n+sod(n) for n = 1421320094 and 1421320103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421320127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1614697 + ... + 1615576.

Almost surely, 2^1421320120 is an apocalyptic number.

1421320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421320120 is an abundant number, since it is smaller than the sum of its proper divisors (2067375800).

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

1421320120 is a wasteful number, since it uses less digits than its factorization.

1421320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230295 (or 3230291 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1421320120 is about 37700.3994673797. The cubic root of 1421320120 is about 1124.3390672541.

Adding to 1421320120 its reverse (210231241), we get a palindrome (1631551361).

The spelling of 1421320120 in words is "one billion, four hundred twenty-one million, three hundred twenty thousand, one hundred twenty".