1121551233 has 8 divisors (see below), whose sum is σ = 1631347296. Its totient is φ = 679728000.

The previous prime is 1121551219. The next prime is 1121551243. The reversal of 1121551233 is 3321551211.

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

It is not a de Polignac number, because 1121551233 - 2⁸ = 1121550977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121551213) 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, 16993168 + ... + 16993233.

It is an arithmetic number, because the mean of its divisors is an integer number (203918412).

Almost surely, 2^1121551233 is an apocalyptic number.

It is an amenable number.

1121551233 is a deficient number, since it is larger than the sum of its proper divisors (509796063).

1121551233 is a wasteful number, since it uses less digits than its factorization.

1121551233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33986415.

The product of its digits is 900, while the sum is 24.

The square root of 1121551233 is about 33489.5690178300. The cubic root of 1121551233 is about 1038.9780496776.

The spelling of 1121551233 in words is "one billion, one hundred twenty-one million, five hundred fifty-one thousand, two hundred thirty-three".