43021402032 has 40 divisors (see below), whose sum is σ = 127015568896. Its totient is φ = 12291829056.

The previous prime is 43021402027. The next prime is 43021402037. The reversal of 43021402032 is 23020412034.

It is an interprime number because it is at equal distance from previous prime (43021402027) and next prime (43021402037).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (43021402037) 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, 64019608 + ... + 64020279.

Almost surely, 2^43021402032 is an apocalyptic number.

43021402032 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43021402032 is an abundant number, since it is smaller than the sum of its proper divisors (83994166864).

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

43021402032 is a wasteful number, since it uses less digits than its factorization.

43021402032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128039905 (or 128039899 counting only the distinct ones).

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

Adding to 43021402032 its reverse (23020412034), we get a palindrome (66041814066).

The spelling of 43021402032 in words is "forty-three billion, twenty-one million, four hundred two thousand, thirty-two".