1133212520 has 64 divisors (see below), whose sum is σ = 2945160000. Its totient is φ = 387834880.

The previous prime is 1133212519. The next prime is 1133212523. The reversal of 1133212520 is 252123311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1133212492 and 1133212501.

It is not an unprimeable number, because it can be changed into a prime (1133212523) 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, 68270 + ... + 83229.

It is an arithmetic number, because the mean of its divisors is an integer number (46018125).

Almost surely, 2^1133212520 is an apocalyptic number.

1133212520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133212520 is an abundant number, since it is smaller than the sum of its proper divisors (1811947480).

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

1133212520 is a wasteful number, since it uses less digits than its factorization.

1133212520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151538 (or 151534 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1133212520 is about 33663.2220680077. Note that the first 3 decimals coincide. The cubic root of 1133212520 is about 1042.5665529611.

Adding to 1133212520 its reverse (252123311), we get a palindrome (1385335831).

The spelling of 1133212520 in words is "one billion, one hundred thirty-three million, two hundred twelve thousand, five hundred twenty".