1503213312 has 144 divisors (see below), whose sum is σ = 4176693248. Its totient is φ = 479416320.

The previous prime is 1503213311. The next prime is 1503213317. The reversal of 1503213312 is 2133123051.

It is a super-2 number, since 2×1503213312² = 4519300522748018688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1503213311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2451918 + ... + 2452530.

Almost surely, 2^1503213312 is an apocalyptic number.

1503213312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1503213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2088346624).

1503213312 is an abundant number, since it is smaller than the sum of its proper divisors (2673479936).

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

1503213312 is a wasteful number, since it uses less digits than its factorization.

1503213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1503213312 is about 38771.2949487117. The cubic root of 1503213312 is about 1145.5310648989.

Adding to 1503213312 its reverse (2133123051), we get a palindrome (3636336363).

The spelling of 1503213312 in words is "one billion, five hundred three million, two hundred thirteen thousand, three hundred twelve".