133031245420 has 12 divisors (see below), whose sum is σ = 279365615424. Its totient is φ = 53212498160.

The previous prime is 133031245379. The next prime is 133031245433. The reversal of 133031245420 is 24542130331.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3325781116 + ... + 3325781155.

It is an arithmetic number, because the mean of its divisors is an integer number (23280467952).

Almost surely, 2^133031245420 is an apocalyptic number.

133031245420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133031245420 is an abundant number, since it is smaller than the sum of its proper divisors (146334370004).

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

133031245420 is a wasteful number, since it uses less digits than its factorization.

133031245420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651562280 (or 6651562278 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 133031245420 its reverse (24542130331), we get a palindrome (157573375751).

The spelling of 133031245420 in words is "one hundred thirty-three billion, thirty-one million, two hundred forty-five thousand, four hundred twenty".