42111100312040 has 16 divisors (see below), whose sum is σ = 94749975702180. Its totient is φ = 16844440124800.

The previous prime is 42111100311967. The next prime is 42111100312067. The reversal of 42111100312040 is 4021300111124.

It can be written as a sum of positive squares in 2 ways, for example, as 40335378828196 + 1775721483844 = 6351014^2 + 1332562^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526388753861 + ... + 526388753940.

Almost surely, 2^{42111100312040} is an apocalyptic number.

42111100312040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42111100312040 is an abundant number, since it is smaller than the sum of its proper divisors (52638875390140).

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

42111100312040 is a wasteful number, since it uses less digits than its factorization.

42111100312040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052777507812 (or 1052777507808 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 42111100312040 its reverse (4021300111124), we get a palindrome (46132400423164).

The spelling of 42111100312040 in words is "forty-two trillion, one hundred eleven billion, one hundred million, three hundred twelve thousand, forty".