42321011243 has 48 divisors (see below), whose sum is σ = 50411741184. Its totient is φ = 35419991040.

The previous prime is 42321011231. The next prime is 42321011263. The reversal of 42321011243 is 34211012324.

42321011243 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 42321011243 - 2²⁰ = 42319962667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42321011263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200573408 + ... + 200573618.

It is an arithmetic number, because the mean of its divisors is an integer number (1050244608).

Almost surely, 2^42321011243 is an apocalyptic number.

42321011243 is a deficient number, since it is larger than the sum of its proper divisors (8090729941).

42321011243 is a wasteful number, since it uses less digits than its factorization.

42321011243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 42321011243 its reverse (34211012324), we get a palindrome (76532023567).

The spelling of 42321011243 in words is "forty-two billion, three hundred twenty-one million, eleven thousand, two hundred forty-three".