31430653605122 has 16 divisors (see below), whose sum is σ = 48385153938744. Its totient is φ = 15303685968000.

The previous prime is 31430653605119. The next prime is 31430653605133. The reversal of 31430653605122 is 22150635603413.

It can be written as a sum of positive squares in 4 ways, for example, as 22189290723601 + 9241362881521 = 4710551^2 + 3039961^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 31430653605122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354207629 + ... + 354296352.

Almost surely, 2^{31430653605122} is an apocalyptic number.

31430653605122 is a deficient number, since it is larger than the sum of its proper divisors (16954500333622).

31430653605122 is a wasteful number, since it uses less digits than its factorization.

31430653605122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708504565.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 31430653605122 in words is "thirty-one trillion, four hundred thirty billion, six hundred fifty-three million, six hundred five thousand, one hundred twenty-two".