133403405352 has 128 divisors (see below), whose sum is σ = 393025167360. Its totient is φ = 36945342720.

The previous prime is 133403405323. The next prime is 133403405381. The reversal of 133403405352 is 253504304331.

It is an interprime number because it is at equal distance from previous prime (133403405323) and next prime (133403405381).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648777 + ... + 829287.

It is an arithmetic number, because the mean of its divisors is an integer number (3070509120).

Almost surely, 2^133403405352 is an apocalyptic number.

133403405352 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 133403405352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196512583680).

133403405352 is an abundant number, since it is smaller than the sum of its proper divisors (259621762008).

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

133403405352 is a wasteful number, since it uses less digits than its factorization.

133403405352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180663 (or 180659 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 133403405352 its reverse (253504304331), we get a palindrome (386907709683).

The spelling of 133403405352 in words is "one hundred thirty-three billion, four hundred three million, four hundred five thousand, three hundred fifty-two".