31331050142426 has 16 divisors (see below), whose sum is σ = 48628264739400. Its totient is φ = 15121875628608.

The previous prime is 31331050142423. The next prime is 31331050142437. The reversal of 31331050142426 is 62424105013313.

It can be written as a sum of positive squares in 4 ways, for example, as 26847434465401 + 4483615677025 = 5181451^2 + 2117455^2 .

It is not an unprimeable number, because it can be changed into a prime (31331050142423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61510661 + ... + 62017928.

Almost surely, 2^{31331050142426} is an apocalyptic number.

31331050142426 is a deficient number, since it is larger than the sum of its proper divisors (17297214596974).

31331050142426 is a wasteful number, since it uses less digits than its factorization.

31331050142426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123532993.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 31331050142426 its reverse (62424105013313), we get a palindrome (93755155155739).

The spelling of 31331050142426 in words is "thirty-one trillion, three hundred thirty-one billion, fifty million, one hundred forty-two thousand, four hundred twenty-six".