101442040400000 has 192 divisors, whose sum is σ = 252657555522120. Its totient is φ = 40567296000000.

The previous prime is 101442040399993. The next prime is 101442040400011. The reversal of 101442040400000 is 4040244101.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 79454118999616 + 21987921400384 = 8913704^2 + 4689128^2 .

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 23 ways as a sum of consecutive naturals, for example, 1848372560 + ... + 1848427440.

Almost surely, 2^{101442040400000} is an apocalyptic number.

101442040400000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101442040400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126328777761060).

101442040400000 is an abundant number, since it is smaller than the sum of its proper divisors (151215515122120).

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

101442040400000 is an frugal number, since it uses more digits than its factorization.

101442040400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59541 (or 59509 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 101442040400000 its reverse (4040244101), we get a palindrome (101446080644101).

The spelling of 101442040400000 in words is "one hundred one trillion, four hundred forty-two billion, forty million, four hundred thousand".