1121000013276 has 192 divisors, whose sum is σ = 3209289624576. Its totient is φ = 299677593600.

The previous prime is 1121000013193. The next prime is 1121000013277. The reversal of 1121000013276 is 6723100001211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121000013277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48810436 + ... + 48833396.

It is an arithmetic number, because the mean of its divisors is an integer number (16715050128).

Almost surely, 2^{1121000013276} 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 1121000013276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1604644812288).

1121000013276 is an abundant number, since it is smaller than the sum of its proper divisors (2088289611300).

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

1121000013276 is a wasteful number, since it uses less digits than its factorization.

1121000013276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24252 (or 24250 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

Adding to 1121000013276 its reverse (6723100001211), we get a palindrome (7844100014487).

The spelling of 1121000013276 in words is "one trillion, one hundred twenty-one billion, thirteen thousand, two hundred seventy-six".