1421110332 has 60 divisors (see below), whose sum is σ = 3723825336. Its totient is φ = 472586400.

The previous prime is 1421110309. The next prime is 1421110343. The reversal of 1421110332 is 2330111241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 138582 + ... + 148482.

Almost surely, 2^1421110332 is an apocalyptic number.

1421110332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421110332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1861912668).

1421110332 is an abundant number, since it is smaller than the sum of its proper divisors (2302715004).

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

1421110332 is a wasteful number, since it uses less digits than its factorization.

1421110332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10360 (or 10349 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1421110332 is about 37697.6170599681. The cubic root of 1421110332 is about 1124.2837467468.

Adding to 1421110332 its reverse (2330111241), we get a palindrome (3751221573).

Subtracting 1421110332 from its reverse (2330111241), we obtain a palindrome (909000909).

The spelling of 1421110332 in words is "one billion, four hundred twenty-one million, one hundred ten thousand, three hundred thirty-two".