43351401020 has 48 divisors (see below), whose sum is σ = 92058488928. Its totient is φ = 17146490880.

The previous prime is 43351400993. The next prime is 43351401073. The reversal of 43351401020 is 2010415334.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2305055 + ... + 2323785.

It is an arithmetic number, because the mean of its divisors is an integer number (1917885186).

Almost surely, 2^43351401020 is an apocalyptic number.

It is an amenable number.

43351401020 is an abundant number, since it is smaller than the sum of its proper divisors (48707087908).

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

43351401020 is a wasteful number, since it uses less digits than its factorization.

43351401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20030 (or 20028 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 43351401020 its reverse (2010415334), we get a palindrome (45361816354).

The spelling of 43351401020 in words is "forty-three billion, three hundred fifty-one million, four hundred one thousand, twenty".