31430243031412 has 24 divisors (see below), whose sum is σ = 56516794203240. Its totient is φ = 15282998121600.

The previous prime is 31430243031401. The next prime is 31430243031463. The reversal of 31430243031412 is 21413034203413.

It can be written as a sum of positive squares in 4 ways, for example, as 8912219091556 + 22518023939856 = 2985334^2 + 4745316^2 .

It is a super-3 number, since 3×31430243031412³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51014839 + ... + 51627262.

It is an arithmetic number, because the mean of its divisors is an integer number (2354866425135).

Almost surely, 2^{31430243031412} is an apocalyptic number.

It is an amenable number.

31430243031412 is a deficient number, since it is larger than the sum of its proper divisors (25086551171828).

31430243031412 is a wasteful number, since it uses less digits than its factorization.

31430243031412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102644211 (or 102644209 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31430243031412 its reverse (21413034203413), we get a palindrome (52843277234825).

The spelling of 31430243031412 in words is "thirty-one trillion, four hundred thirty billion, two hundred forty-three million, thirty-one thousand, four hundred twelve".