1101213001312 has 96 divisors (see below), whose sum is σ = 2297532916224. Its totient is φ = 518480793600.

The previous prime is 1101213001309. The next prime is 1101213001321. The reversal of 1101213001312 is 2131003121011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 36093648 + ... + 36124144.

It is an arithmetic number, because the mean of its divisors is an integer number (23932634544).

Almost surely, 2^{1101213001312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101213001312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1148766458112).

1101213001312 is an abundant number, since it is smaller than the sum of its proper divisors (1196319914912).

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

1101213001312 is a wasteful number, since it uses less digits than its factorization.

1101213001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31292 (or 31284 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1101213001312 its reverse (2131003121011), we get a palindrome (3232216122323).

The spelling of 1101213001312 in words is "one trillion, one hundred one billion, two hundred thirteen million, one thousand, three hundred twelve".