31255434540122 has 32 divisors (see below), whose sum is σ = 50994367376400. Its totient is φ = 14281378675200.

The previous prime is 31255434540101. The next prime is 31255434540139. The reversal of 31255434540122 is 22104543455213.

It can be written as a sum of positive squares in 8 ways, for example, as 24261742235641 + 6993692304481 = 4925621^2 + 2644559^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31255434540122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26880254 + ... + 28018902.

Almost surely, 2^{31255434540122} is an apocalyptic number.

31255434540122 is a deficient number, since it is larger than the sum of its proper divisors (19738932836278).

31255434540122 is a wasteful number, since it uses less digits than its factorization.

31255434540122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149218.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 31255434540122 its reverse (22104543455213), we get a palindrome (53359977995335).

The spelling of 31255434540122 in words is "thirty-one trillion, two hundred fifty-five billion, four hundred thirty-four million, five hundred forty thousand, one hundred twenty-two".