31219104386 has 8 divisors (see below), whose sum is σ = 48094296060. Its totient is φ = 15187672368.

The previous prime is 31219104377. The next prime is 31219104401. The reversal of 31219104386 is 68340191213.

It can be written as a sum of positive squares in 2 ways, for example, as 31118724025 + 100380361 = 176405^2 + 10019^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210939821 + ... + 210939968.

Almost surely, 2^31219104386 is an apocalyptic number.

31219104386 is a deficient number, since it is larger than the sum of its proper divisors (16875191674).

31219104386 is a wasteful number, since it uses less digits than its factorization.

31219104386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421879828.

The product of its (nonzero) digits is 31104, while the sum is 38.

Adding to 31219104386 its reverse (68340191213), we get a palindrome (99559295599).

The spelling of 31219104386 in words is "thirty-one billion, two hundred nineteen million, one hundred four thousand, three hundred eighty-six".