3131204534 has 16 divisors (see below), whose sum is σ = 4978769328. Its totient is φ = 1471825152.

The previous prime is 3131204533. The next prime is 3131204539. The reversal of 3131204534 is 4354021313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131204533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22127 + ... + 82170.

It is an arithmetic number, because the mean of its divisors is an integer number (311173083).

Almost surely, 2^3131204534 is an apocalyptic number.

3131204534 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3131204534 is a deficient number, since it is larger than the sum of its proper divisors (1847564794).

3131204534 is a wasteful number, since it uses less digits than its factorization.

3131204534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105199.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 3131204534 is about 55957.1669583084. The cubic root of 3131204534 is about 1462.9758117147.

Adding to 3131204534 its reverse (4354021313), we get a palindrome (7485225847).

The spelling of 3131204534 in words is "three billion, one hundred thirty-one million, two hundred four thousand, five hundred thirty-four".