43020021342 has 16 divisors (see below), whose sum is σ = 86050524672. Its totient is φ = 14338260120.

The previous prime is 43020021337. The next prime is 43020021349. The reversal of 43020021342 is 24312002034.

It is a super-2 number, since 2×43020021342² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43020021349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382884 + ... + 482327.

It is an arithmetic number, because the mean of its divisors is an integer number (5378157792).

Almost surely, 2^43020021342 is an apocalyptic number.

43020021342 is an abundant number, since it is smaller than the sum of its proper divisors (43030503330).

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

43020021342 is a wasteful number, since it uses less digits than its factorization.

43020021342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873503.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 43020021342 its reverse (24312002034), we get a palindrome (67332023376).

The spelling of 43020021342 in words is "forty-three billion, twenty million, twenty-one thousand, three hundred forty-two".