2151503323 has 48 divisors (see below), whose sum is σ = 2549200896. Its totient is φ = 1806416640.

The previous prime is 2151503311. The next prime is 2151503363. The reversal of 2151503323 is 3233051512.

2151503323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2151503323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151503303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8180490 + ... + 8180752.

It is an arithmetic number, because the mean of its divisors is an integer number (53108352).

Almost surely, 2^2151503323 is an apocalyptic number.

2151503323 is a deficient number, since it is larger than the sum of its proper divisors (397697573).

2151503323 is a wasteful number, since it uses less digits than its factorization.

2151503323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 2151503323 is about 46384.3003935599. The cubic root of 2151503323 is about 1290.9636296882.

Adding to 2151503323 its reverse (3233051512), we get a palindrome (5384554835).

The spelling of 2151503323 in words is "two billion, one hundred fifty-one million, five hundred three thousand, three hundred twenty-three".