43430120100 has 54 divisors (see below), whose sum is σ = 136129301490. Its totient is φ = 11581365120.

The previous prime is 43430120081. The next prime is 43430120101. The reversal of 43430120100 is 102103434.

43430120100 is a `hidden beast` number, since 434 + 30 + 1 + 201 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1325542464 + 42104577636 = 36408^2 + 205194^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (43430120101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24126945 + ... + 24128744.

Almost surely, 2^43430120100 is an apocalyptic number.

It is an amenable number.

43430120100 is an abundant number, since it is smaller than the sum of its proper divisors (92699181390).

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

43430120100 is a wasteful number, since it uses less digits than its factorization.

43430120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48255709 (or 48255699 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 43430120100 its reverse (102103434), we get a palindrome (43532223534).

The spelling of 43430120100 in words is "forty-three billion, four hundred thirty million, one hundred twenty thousand, one hundred".