42123223240 has 32 divisors (see below), whose sum is σ = 108316860480. Its totient is φ = 14442247872.

The previous prime is 42123223217. The next prime is 42123223253. The reversal of 42123223240 is 4232232124.

42123223240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42123223240² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75219762 + ... + 75220321.

It is an arithmetic number, because the mean of its divisors is an integer number (3384901890).

Almost surely, 2^42123223240 is an apocalyptic number.

42123223240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42123223240 is an abundant number, since it is smaller than the sum of its proper divisors (66193637240).

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

42123223240 is a wasteful number, since it uses less digits than its factorization.

42123223240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150440101 (or 150440097 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 42123223240 its reverse (4232232124), we get a palindrome (46355455364).

The spelling of 42123223240 in words is "forty-two billion, one hundred twenty-three million, two hundred twenty-three thousand, two hundred forty".