31243234214 has 4 divisors (see below), whose sum is σ = 46864851324. Its totient is φ = 15621617106.

The previous prime is 31243234199. The next prime is 31243234241. The reversal of 31243234214 is 41243234213.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×31243234214² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7810808552 + ... + 7810808555.

It is an arithmetic number, because the mean of its divisors is an integer number (11716212831).

Almost surely, 2^31243234214 is an apocalyptic number.

31243234214 is a deficient number, since it is larger than the sum of its proper divisors (15621617110).

31243234214 is a wasteful number, since it uses less digits than its factorization.

31243234214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15621617109.

The product of its digits is 13824, while the sum is 29.

Adding to 31243234214 its reverse (41243234213), we get a palindrome (72486468427).

Subtracting 31243234214 from its reverse (41243234213), we obtain a palindrome (9999999999).

The spelling of 31243234214 in words is "thirty-one billion, two hundred forty-three million, two hundred thirty-four thousand, two hundred fourteen".