31430242430213 has 4 divisors (see below), whose sum is σ = 34287537196608. Its totient is φ = 28572947663820.

The previous prime is 31430242430183. The next prime is 31430242430243. The reversal of 31430242430213 is 31203424203413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (31430242430183) and next prime (31430242430243).

It is a cyclic number.

It is not a de Polignac number, because 31430242430213 - 2³⁰ = 31429168688389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31430242430213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430242430243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428647383181 + ... + 1428647383202.

It is an arithmetic number, because the mean of its divisors is an integer number (8571884299152).

Almost surely, 2^{31430242430213} is an apocalyptic number.

It is an amenable number.

31430242430213 is a deficient number, since it is larger than the sum of its proper divisors (2857294766395).

31430242430213 is a wasteful number, since it uses less digits than its factorization.

31430242430213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857294766394.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 31430242430213 its reverse (31203424203413), we get a palindrome (62633666633626).

The spelling of 31430242430213 in words is "thirty-one trillion, four hundred thirty billion, two hundred forty-two million, four hundred thirty thousand, two hundred thirteen".