1101131231202 has 96 divisors (see below), whose sum is σ = 2481116406912. Its totient is φ = 352648588032.

The previous prime is 1101131231111. The next prime is 1101131231203. The reversal of 1101131231202 is 2021321311011.

1101131231202 is a `hidden beast` number, since 1 + 101 + 131 + 231 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1101131231203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22280323 + ... + 22329689.

It is an arithmetic number, because the mean of its divisors is an integer number (25844962572).

Almost surely, 2^{1101131231202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101131231202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240558203456).

1101131231202 is an abundant number, since it is smaller than the sum of its proper divisors (1379985175710).

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

1101131231202 is a wasteful number, since it uses less digits than its factorization.

1101131231202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49832 (or 49829 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1101131231202 its reverse (2021321311011), we get a palindrome (3122452542213).

The spelling of 1101131231202 in words is "one trillion, one hundred one billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred two".