31504130441311 has 12 divisors (see below), whose sum is σ = 34630141179816. Its totient is φ = 28638767017520.

The previous prime is 31504130441257. The next prime is 31504130441317. The reversal of 31504130441311 is 11314403140513.

It is a de Polignac number, because none of the positive numbers 2^k-31504130441311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31504130441317) 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 11 ways as a sum of consecutive naturals, for example, 3564400 + ... + 8701333.

It is an arithmetic number, because the mean of its divisors is an integer number (2885845098318).

Almost surely, 2^{31504130441311} is an apocalyptic number.

31504130441311 is a deficient number, since it is larger than the sum of its proper divisors (3126010738505).

31504130441311 is a wasteful number, since it uses less digits than its factorization.

31504130441311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12286982 (or 12286971 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 31504130441311 its reverse (11314403140513), we get a palindrome (42818533581824).

The spelling of 31504130441311 in words is "thirty-one trillion, five hundred four billion, one hundred thirty million, four hundred forty-one thousand, three hundred eleven".