1121269016 has 32 divisors (see below), whose sum is σ = 2467662240. Its totient is φ = 467555328.

The previous prime is 1121268917. The next prime is 1121269027. The reversal of 1121269016 is 6109621211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121269016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268505 + ... + 272648.

It is an arithmetic number, because the mean of its divisors is an integer number (77114445).

Almost surely, 2^1121269016 is an apocalyptic number.

It is an amenable number.

1121269016 is an abundant number, since it is smaller than the sum of its proper divisors (1346393224).

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

1121269016 is a wasteful number, since it uses less digits than its factorization.

1121269016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541203 (or 541199 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1121269016 is about 33485.3552467344. The cubic root of 1121269016 is about 1038.8908960232.

The spelling of 1121269016 in words is "one billion, one hundred twenty-one million, two hundred sixty-nine thousand, sixteen".