1121267376 has 30 divisors (see below), whose sum is σ = 3137991740. Its totient is φ = 373755744.

The previous prime is 1121267369. The next prime is 1121267377. The reversal of 1121267376 is 6737621211.

It is a happy number.

1121267376 is a `hidden beast` number, since 1 + 1 + 21 + 267 + 376 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1121267376.

It is not an unprimeable number, because it can be changed into a prime (1121267377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3893146 + ... + 3893433.

Almost surely, 2^1121267376 is an apocalyptic number.

1121267376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1121267376 is an abundant number, since it is smaller than the sum of its proper divisors (2016724364).

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

1121267376 is a wasteful number, since it uses less digits than its factorization.

1121267376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786593 (or 7786584 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 1121267376 is about 33485.3307584082. The cubic root of 1121267376 is about 1038.8903895191.

Adding to 1121267376 its reverse (6737621211), we get a palindrome (7858888587).

The spelling of 1121267376 in words is "one billion, one hundred twenty-one million, two hundred sixty-seven thousand, three hundred seventy-six".