31142320214 has 8 divisors (see below), whose sum is σ = 46819890480. Its totient is φ = 15535690056.

The previous prime is 31142320201. The next prime is 31142320217. The reversal of 31142320214 is 41202324113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31142320214² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31142320214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31142320217) 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, 17733929 + ... + 17735684.

It is an arithmetic number, because the mean of its divisors is an integer number (5852486310).

Almost surely, 2^31142320214 is an apocalyptic number.

31142320214 is a deficient number, since it is larger than the sum of its proper divisors (15677570266).

31142320214 is a wasteful number, since it uses less digits than its factorization.

31142320214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35470054.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31142320214 its reverse (41202324113), we get a palindrome (72344644327).

The spelling of 31142320214 in words is "thirty-one billion, one hundred forty-two million, three hundred twenty thousand, two hundred fourteen".