43402021102 has 16 divisors (see below), whose sum is σ = 71026858800. Its totient is φ = 19726699840.

The previous prime is 43402021067. The next prime is 43402021109. The reversal of 43402021102 is 20112020434.

It is a self number, because there is not a number n which added to its sum of digits gives 43402021102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43402021109) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 255474 + ... + 389962.

It is an arithmetic number, because the mean of its divisors is an integer number (4439178675).

Almost surely, 2^43402021102 is an apocalyptic number.

43402021102 is a deficient number, since it is larger than the sum of its proper divisors (27624837698).

43402021102 is a wasteful number, since it uses less digits than its factorization.

43402021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149171.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 43402021102 its reverse (20112020434), we get a palindrome (63514041536).

The spelling of 43402021102 in words is "forty-three billion, four hundred two million, twenty-one thousand, one hundred two".