5156321203 has 4 divisors (see below), whose sum is σ = 5625077688. Its totient is φ = 4687564720.

The previous prime is 5156321129. The next prime is 5156321227. The reversal of 5156321203 is 3021236515.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5156321203 - 2¹³ = 5156313011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5156321603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234378226 + ... + 234378247.

It is an arithmetic number, because the mean of its divisors is an integer number (1406269422).

Almost surely, 2^5156321203 is an apocalyptic number.

5156321203 is a deficient number, since it is larger than the sum of its proper divisors (468756485).

5156321203 is a wasteful number, since it uses less digits than its factorization.

5156321203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468756484.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 5156321203 is about 71807.5288740672. The cubic root of 5156321203 is about 1727.6137596741.

Adding to 5156321203 its reverse (3021236515), we get a palindrome (8177557718).

The spelling of 5156321203 in words is "five billion, one hundred fifty-six million, three hundred twenty-one thousand, two hundred three".