133031113420 has 24 divisors (see below), whose sum is σ = 279374382000. Its totient is φ = 53210722752.

The previous prime is 133031113403. The next prime is 133031113429. The reversal of 133031113420 is 24311130331.

It is a junction number, because it is equal to n+sod(n) for n = 133031113391 and 133031113400.

It is not an unprimeable number, because it can be changed into a prime (133031113429) 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, 658606 + ... + 836554.

It is an arithmetic number, because the mean of its divisors is an integer number (11640599250).

Almost surely, 2^133031113420 is an apocalyptic number.

133031113420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133031113420 is an abundant number, since it is smaller than the sum of its proper divisors (146343268580).

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

133031113420 is a wasteful number, since it uses less digits than its factorization.

133031113420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215337 (or 215335 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 133031113420 its reverse (24311130331), we get a palindrome (157342243751).

The spelling of 133031113420 in words is "one hundred thirty-three billion, thirty-one million, one hundred thirteen thousand, four hundred twenty".