3131294075949 has 16 divisors (see below), whose sum is σ = 4497012257472. Its totient is φ = 1926609433728.

The previous prime is 3131294075947. The next prime is 3131294075971. The reversal of 3131294075949 is 9495704921313.

It is not a de Polignac number, because 3131294075949 - 2¹ = 3131294075947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131294075947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6875859 + ... + 7317104.

It is an arithmetic number, because the mean of its divisors is an integer number (281063266092).

Almost surely, 2^{3131294075949} is an apocalyptic number.

3131294075949 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3131294075949 is a deficient number, since it is larger than the sum of its proper divisors (1365718181523).

3131294075949 is a wasteful number, since it uses less digits than its factorization.

3131294075949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14198636.

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 3131294075949 in words is "three trillion, one hundred thirty-one billion, two hundred ninety-four million, seventy-five thousand, nine hundred forty-nine".