42111331440 has 40 divisors (see below), whose sum is σ = 130545128208. Its totient is φ = 11229688320.

The previous prime is 42111331429. The next prime is 42111331571. The reversal of 42111331440 is 4413311124.

42111331440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 42111331440.

It is a congruent number.

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, 87731701 + ... + 87732180.

Almost surely, 2^42111331440 is an apocalyptic number.

42111331440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42111331440 is an abundant number, since it is smaller than the sum of its proper divisors (88433796768).

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

42111331440 is a wasteful number, since it uses less digits than its factorization.

42111331440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175463897 (or 175463891 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 42111331440 its reverse (4413311124), we get a palindrome (46524642564).

The spelling of 42111331440 in words is "forty-two billion, one hundred eleven million, three hundred thirty-one thousand, four hundred forty".