43020242100 has 360 divisors, whose sum is σ = 155384304768. Its totient is φ = 10206259200.

The previous prime is 43020242099. The next prime is 43020242101. The reversal of 43020242100 is 124202034.

43020242100 is a `hidden beast` number, since 43 + 0 + 202 + 421 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (43020242099) and next prime (43020242101).

It is a super-2 number, since 2×43020242100² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43020242101) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4182564 + ... + 4192836.

Almost surely, 2^43020242100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43020242100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77692152384).

43020242100 is an abundant number, since it is smaller than the sum of its proper divisors (112364062668).

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

43020242100 is a wasteful number, since it uses less digits than its factorization.

43020242100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10357 (or 10341 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 43020242100 its reverse (124202034), we get a palindrome (43144444134).

The spelling of 43020242100 in words is "forty-three billion, twenty million, two hundred forty-two thousand, one hundred".