1121000331 has 32 divisors (see below), whose sum is σ = 1687504896. Its totient is φ = 655776000.

The previous prime is 1121000299. The next prime is 1121000401. The reversal of 1121000331 is 1330001211.

It is not a de Polignac number, because 1121000331 - 2⁵ = 1121000299 is a prime.

It is a super-2 number, since 2×1121000331² = 2513283484204219122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121000131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470415 + ... + 472791.

It is an arithmetic number, because the mean of its divisors is an integer number (52734528).

Almost surely, 2^1121000331 is an apocalyptic number.

1121000331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121000331 is a deficient number, since it is larger than the sum of its proper divisors (566504565).

1121000331 is a wasteful number, since it uses less digits than its factorization.

1121000331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1121000331 is about 33481.3430286182. The cubic root of 1121000331 is about 1038.8079077021.

Adding to 1121000331 its reverse (1330001211), we get a palindrome (2451001542).

The spelling of 1121000331 in words is "one billion, one hundred twenty-one million, three hundred thirty-one", and thus it is an aban number.