1121013223 has 8 divisors (see below), whose sum is σ = 1233747216. Its totient is φ = 1010083200.

The previous prime is 1121013217. The next prime is 1121013233. The reversal of 1121013223 is 3223101211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121013223 - 2⁵ = 1121013191 is a prime.

It is a super-2 number, since 2×1121013223² = 2513341292281695458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121013197 and 1121013206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121013203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449688 + ... + 452173.

It is an arithmetic number, because the mean of its divisors is an integer number (154218402).

Almost surely, 2^1121013223 is an apocalyptic number.

1121013223 is a deficient number, since it is larger than the sum of its proper divisors (112733993).

1121013223 is a wasteful number, since it uses less digits than its factorization.

1121013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901985.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1121013223 is about 33481.5355531971. The cubic root of 1121013223 is about 1038.8118899371.

Adding to 1121013223 its reverse (3223101211), we get a palindrome (4344114434).

The spelling of 1121013223 in words is "one billion, one hundred twenty-one million, thirteen thousand, two hundred twenty-three".