31423312240266 has 32 divisors (see below), whose sum is σ = 64394726330880. Its totient is φ = 10217076138864.

The previous prime is 31423312240253. The next prime is 31423312240303. The reversal of 31423312240266 is 66204221332413.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81770476 + ... + 82153863.

It is an arithmetic number, because the mean of its divisors is an integer number (2012335197840).

Almost surely, 2^{31423312240266} is an apocalyptic number.

31423312240266 is an abundant number, since it is smaller than the sum of its proper divisors (32971414090614).

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

31423312240266 is a wasteful number, since it uses less digits than its factorization.

31423312240266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163925130.

The product of its (nonzero) digits is 248832, while the sum is 39.

Adding to 31423312240266 its reverse (66204221332413), we get a palindrome (97627533572679).

The spelling of 31423312240266 in words is "thirty-one trillion, four hundred twenty-three billion, three hundred twelve million, two hundred forty thousand, two hundred sixty-six".