1121023430 has 32 divisors (see below), whose sum is σ = 2046902400. Its totient is φ = 441971712.

The previous prime is 1121023417. The next prime is 1121023433. The reversal of 1121023430 is 343201211.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1121023399 and 1121023408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121023433) 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, 752126 + ... + 753614.

It is an arithmetic number, because the mean of its divisors is an integer number (63965700).

Almost surely, 2^1121023430 is an apocalyptic number.

1121023430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121023430 is a deficient number, since it is larger than the sum of its proper divisors (925878970).

1121023430 is a wasteful number, since it uses less digits than its factorization.

1121023430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1121023430 is about 33481.6879801482. The cubic root of 1121023430 is about 1038.8150427756.

Adding to 1121023430 its reverse (343201211), we get a palindrome (1464224641).

The spelling of 1121023430 in words is "one billion, one hundred twenty-one million, twenty-three thousand, four hundred thirty".