1121005361 has 16 divisors (see below), whose sum is σ = 1290885120. Its totient is φ = 953589840.

The previous prime is 1121005351. The next prime is 1121005367. The reversal of 1121005361 is 1635001211.

It is not a de Polignac number, because 1121005361 - 2¹⁴ = 1120988977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121005367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579566 + ... + 581496.

It is an arithmetic number, because the mean of its divisors is an integer number (80680320).

Almost surely, 2^1121005361 is an apocalyptic number.

It is an amenable number.

1121005361 is a deficient number, since it is larger than the sum of its proper divisors (169879759).

1121005361 is a wasteful number, since it uses less digits than its factorization.

1121005361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1121005361 is about 33481.4181449950. The cubic root of 1121005361 is about 1038.8094614322.

Adding to 1121005361 its reverse (1635001211), we get a palindrome (2756006572).

The spelling of 1121005361 in words is "one billion, one hundred twenty-one million, five thousand, three hundred sixty-one".