1001152042400 has 144 divisors (see below), whose sum is σ = 2481513547968. Its totient is φ = 394355712000.

The previous prime is 1001152042379. The next prime is 1001152042403. The reversal of 1001152042400 is 42402511001.

It is a happy number.

1001152042400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (1001152042403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20626160 + ... + 20674640.

It is an arithmetic number, because the mean of its divisors is an integer number (17232732972).

Almost surely, 2^{1001152042400} is an apocalyptic number.

1001152042400 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 1001152042400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240756773984).

1001152042400 is an abundant number, since it is smaller than the sum of its proper divisors (1480361505568).

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

1001152042400 is a wasteful number, since it uses less digits than its factorization.

1001152042400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48895 (or 48882 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 1001152042400 its reverse (42402511001), we get a palindrome (1043554553401).

The spelling of 1001152042400 in words is "one trillion, one billion, one hundred fifty-two million, forty-two thousand, four hundred".