43228535031 has 32 divisors (see below), whose sum is σ = 72273427200. Its totient is φ = 25295689440.

The previous prime is 43228535023. The next prime is 43228535041. The reversal of 43228535031 is 13053582234.

43228535031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43228535031 - 2³ = 43228535023 is a prime.

It is a super-2 number, since 2×43228535031² (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 (43228535011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2500881 + ... + 2518106.

It is an arithmetic number, because the mean of its divisors is an integer number (2258544600).

Almost surely, 2^43228535031 is an apocalyptic number.

43228535031 is a deficient number, since it is larger than the sum of its proper divisors (29044892169).

43228535031 is a wasteful number, since it uses less digits than its factorization.

43228535031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019036 (or 5019030 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 43228535031 in words is "forty-three billion, two hundred twenty-eight million, five hundred thirty-five thousand, thirty-one".