31212442423310 has 32 divisors (see below), whose sum is σ = 56912928307200. Its totient is φ = 12322744106400.

The previous prime is 31212442423301. The next prime is 31212442423343. The reversal of 31212442423310 is 1332424421213.

It is a happy number.

It is a super-2 number, since 2×31212442423310² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4399766 + ... + 9043385.

It is an arithmetic number, because the mean of its divisors is an integer number (1778529009600).

Almost surely, 2^{31212442423310} is an apocalyptic number.

31212442423310 is a deficient number, since it is larger than the sum of its proper divisors (25700485883890).

31212442423310 is a wasteful number, since it uses less digits than its factorization.

31212442423310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13446176.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 31212442423310 its reverse (1332424421213), we get a palindrome (32544866844523).

The spelling of 31212442423310 in words is "thirty-one trillion, two hundred twelve billion, four hundred forty-two million, four hundred twenty-three thousand, three hundred ten".