133213012420 has 48 divisors (see below), whose sum is σ = 294542559360. Its totient is φ = 50468431104.

The previous prime is 133213012327. The next prime is 133213012423. The reversal of 133213012420 is 24210312331.

It is a super-2 number, since 2×133213012420² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133213012391 and 133213012400.

It is not an unprimeable number, because it can be changed into a prime (133213012423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1603752 + ... + 1684768.

It is an arithmetic number, because the mean of its divisors is an integer number (6136303320).

Almost surely, 2^133213012420 is an apocalyptic number.

133213012420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133213012420 is an abundant number, since it is smaller than the sum of its proper divisors (161329546940).

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

133213012420 is a wasteful number, since it uses less digits than its factorization.

133213012420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85372 (or 85370 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 133213012420 its reverse (24210312331), we get a palindrome (157423324751).

The spelling of 133213012420 in words is "one hundred thirty-three billion, two hundred thirteen million, twelve thousand, four hundred twenty".