1101231002000 has 80 divisors (see below), whose sum is σ = 2663589257472. Its totient is φ = 440357961600.

The previous prime is 1101231001991. The next prime is 1101231002021. The reversal of 1101231002000 is 2001321011.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6603647 + ... + 6768353.

Almost surely, 2^{1101231002000} is an apocalyptic number.

1101231002000 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 1101231002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331794628736).

1101231002000 is an abundant number, since it is smaller than the sum of its proper divisors (1562358255472).

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

1101231002000 is a wasteful number, since it uses less digits than its factorization.

1101231002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168073 (or 168057 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1101231002000 its reverse (2001321011), we get a palindrome (1103232323011).

The spelling of 1101231002000 in words is "one trillion, one hundred one billion, two hundred thirty-one million, two thousand".