43003000012 has 72 divisors (see below), whose sum is σ = 91465291008. Its totient is φ = 17326291200.

The previous prime is 43003000003. The next prime is 43003000021. The reversal of 43003000012 is 21000030034.

It is an interprime number because it is at equal distance from previous prime (43003000003) and next prime (43003000021).

It is a junction number, because it is equal to n+sod(n) for n = 43002999956 and 43003000001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8825937 + ... + 8830807.

It is an arithmetic number, because the mean of its divisors is an integer number (1270351264).

Almost surely, 2^43003000012 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 43003000012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45732645504).

43003000012 is an abundant number, since it is smaller than the sum of its proper divisors (48462290996).

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

43003000012 is a wasteful number, since it uses less digits than its factorization.

43003000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6007 (or 5988 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 43003000012 its reverse (21000030034), we get a palindrome (64003030046).

The spelling of 43003000012 in words is "forty-three billion, three million, twelve", and thus it is an aban number and an uban number.