1121231230 has 96 divisors (see below), whose sum is σ = 2502783360. Its totient is φ = 359553600.

The previous prime is 1121231203. The next prime is 1121231257. The reversal of 1121231230 is 321321211.

It is an interprime number because it is at equal distance from previous prime (1121231203) and next prime (1121231257).

It is a super-2 number, since 2×1121231230² = 2514318942254625800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 772005 + ... + 773455.

It is an arithmetic number, because the mean of its divisors is an integer number (26070660).

Almost surely, 2^1121231230 is an apocalyptic number.

1121231230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121231230 is an abundant number, since it is smaller than the sum of its proper divisors (1381552130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121231230 is a wasteful number, since it uses less digits than its factorization.

1121231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1567 counting only the distinct ones).

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

The square root of 1121231230 is about 33484.7910251804. The cubic root of 1121231230 is about 1038.8792259209.

Adding to 1121231230 its reverse (321321211), we get a palindrome (1442552441).

The spelling of 1121231230 in words is "one billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred thirty".