5131561203 has 12 divisors (see below), whose sum is σ = 7412920528. Its totient is φ = 3420733680.

The previous prime is 5131561157. The next prime is 5131561229. The reversal of 5131561203 is 3021651315.

5131561203 is a `hidden beast` number, since 51 + 31 + 561 + 20 + 3 = 666.

It is not a de Polignac number, because 5131561203 - 2⁹ = 5131560691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5131561103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130026 + ... + 164832.

Almost surely, 2^5131561203 is an apocalyptic number.

5131561203 is a deficient number, since it is larger than the sum of its proper divisors (2281359325).

5131561203 is a wasteful number, since it uses less digits than its factorization.

5131561203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51194 (or 51191 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 5131561203 is about 71634.9160884551. The cubic root of 5131561203 is about 1724.8440610139.

The spelling of 5131561203 in words is "five billion, one hundred thirty-one million, five hundred sixty-one thousand, two hundred three".