31713212226 has 16 divisors (see below), whose sum is σ = 65472438528. Its totient is φ = 10230068400.

The previous prime is 31713212213. The next prime is 31713212239. The reversal of 31713212226 is 62221231713.

It is an interprime number because it is at equal distance from previous prime (31713212213) and next prime (31713212239).

It is a junction number, because it is equal to n+sod(n) for n = 31713212193 and 31713212202.

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, 85250385 + ... + 85250756.

It is an arithmetic number, because the mean of its divisors is an integer number (4092027408).

Almost surely, 2^31713212226 is an apocalyptic number.

31713212226 is an abundant number, since it is smaller than the sum of its proper divisors (33759226302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31713212226 is a wasteful number, since it uses less digits than its factorization.

31713212226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170501177.

The product of its digits is 6048, while the sum is 30.

Adding to 31713212226 its reverse (62221231713), we get a palindrome (93934443939).

The spelling of 31713212226 in words is "thirty-one billion, seven hundred thirteen million, two hundred twelve thousand, two hundred twenty-six".