1001042040000 has 140 divisors (see below), whose sum is σ = 3309678957464. Its totient is φ = 266944512000.

The previous prime is 1001042039903. The next prime is 1001042040001. The reversal of 1001042040000 is 402401001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1001042040001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4051009 + ... + 4291008.

Almost surely, 2^{1001042040000} is an apocalyptic number.

1001042040000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001042040000 is an abundant number, since it is smaller than the sum of its proper divisors (2308636917464).

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

1001042040000 is an frugal number, since it uses more digits than its factorization.

1001042040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342052 (or 8342027 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1001042040000 its reverse (402401001), we get a palindrome (1001444441001).

The spelling of 1001042040000 in words is "one trillion, one billion, forty-two million, forty thousand".