20121433010 has 128 divisors (see below), whose sum is σ = 44658432000. Its totient is φ = 6506619840.

The previous prime is 20121432997. The next prime is 20121433021. The reversal of 20121433010 is 1033412102.

It is a self number, because there is not a number n which added to its sum of digits gives 20121433010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18442565 + ... + 18443655.

It is an arithmetic number, because the mean of its divisors is an integer number (348894000).

Almost surely, 2^20121433010 is an apocalyptic number.

20121433010 is an abundant number, since it is smaller than the sum of its proper divisors (24536998990).

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

20121433010 is a wasteful number, since it uses less digits than its factorization.

20121433010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20121433010 its reverse (1033412102), we get a palindrome (21154845112).

The spelling of 20121433010 in words is "twenty billion, one hundred twenty-one million, four hundred thirty-three thousand, ten".