1333121340 has 24 divisors (see below), whose sum is σ = 3732739920. Its totient is φ = 355499008.

The previous prime is 1333121323. The next prime is 1333121341. The reversal of 1333121340 is 431213331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333121341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11109285 + ... + 11109404.

It is an arithmetic number, because the mean of its divisors is an integer number (155530830).

Almost surely, 2^1333121340 is an apocalyptic number.

1333121340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1333121340 is an abundant number, since it is smaller than the sum of its proper divisors (2399618580).

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

1333121340 is a wasteful number, since it uses less digits than its factorization.

1333121340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22218701 (or 22218699 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1333121340 is about 36511.9342133500. The cubic root of 1333121340 is about 1100.5840809928.

Adding to 1333121340 its reverse (431213331), we get a palindrome (1764334671).

The spelling of 1333121340 in words is "one billion, three hundred thirty-three million, one hundred twenty-one thousand, three hundred forty".