31212303214 has 4 divisors (see below), whose sum is σ = 46818454824. Its totient is φ = 15606151606.

The previous prime is 31212303197. The next prime is 31212303259. The reversal of 31212303214 is 41230321213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41230321213 = 4513 ⋅9135901.

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, 7803075802 + ... + 7803075805.

It is an arithmetic number, because the mean of its divisors is an integer number (11704613706).

Almost surely, 2^31212303214 is an apocalyptic number.

31212303214 is a deficient number, since it is larger than the sum of its proper divisors (15606151610).

31212303214 is a wasteful number, since it uses less digits than its factorization.

31212303214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15606151609.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31212303214 its reverse (41230321213), we get a palindrome (72442624427).

The spelling of 31212303214 in words is "thirty-one billion, two hundred twelve million, three hundred three thousand, two hundred fourteen".