31213110311422 has 16 divisors (see below), whose sum is σ = 50427472524912. Its totient is φ = 14404252533120.

The previous prime is 31213110311381. The next prime is 31213110311489. The reversal of 31213110311422 is 22411301131213.

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, 74720203 + ... + 75136774.

It is an arithmetic number, because the mean of its divisors is an integer number (3151717032807).

Almost surely, 2^{31213110311422} is an apocalyptic number.

31213110311422 is a deficient number, since it is larger than the sum of its proper divisors (19214362213490).

31213110311422 is a wasteful number, since it uses less digits than its factorization.

31213110311422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149865003.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 31213110311422 its reverse (22411301131213), we get a palindrome (53624411442635).

The spelling of 31213110311422 in words is "thirty-one trillion, two hundred thirteen billion, one hundred ten million, three hundred eleven thousand, four hundred twenty-two".