1001020100000 has 288 divisors, whose sum is σ = 2526862770432. Its totient is φ = 390153600000.

The previous prime is 1001020099991. The next prime is 1001020100009. The reversal of 1001020100000 is 10201001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1001020099991) and next prime (1001020100009).

It is a Harshad number since it is a multiple of its sum of digits (5).

It is not an unprimeable number, because it can be changed into a prime (1001020100009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1753099715 + ... + 1753100285.

It is an arithmetic number, because the mean of its divisors is an integer number (8773829064).

Almost surely, 2^{1001020100000} is an apocalyptic number.

1001020100000 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 1001020100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263431385216).

1001020100000 is an abundant number, since it is smaller than the sum of its proper divisors (1525842670432).

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

1001020100000 is an frugal number, since it uses more digits than its factorization.

1001020100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 1001020100000 its reverse (10201001), we get a palindrome (1001030301001).

The spelling of 1001020100000 in words is "one trillion, one billion, twenty million, one hundred thousand".