31440213423214 has 16 divisors (see below), whose sum is σ = 50133951582480. Its totient is φ = 14745279873600.

The previous prime is 31440213423209. The next prime is 31440213423239. The reversal of 31440213423214 is 41232431204413.

It is a self number, because there is not a number n which added to its sum of digits gives 31440213423214.

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, 4095907239 + ... + 4095914914.

It is an arithmetic number, because the mean of its divisors is an integer number (3133371973905).

Almost surely, 2^{31440213423214} is an apocalyptic number.

31440213423214 is a deficient number, since it is larger than the sum of its proper divisors (18693738159266).

31440213423214 is a wasteful number, since it uses less digits than its factorization.

31440213423214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191822275.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 31440213423214 its reverse (41232431204413), we get a palindrome (72672644627627).

The spelling of 31440213423214 in words is "thirty-one trillion, four hundred forty billion, two hundred thirteen million, four hundred twenty-three thousand, two hundred fourteen".