31012052043012 has 48 divisors (see below), whose sum is σ = 72525497571072. Its totient is φ = 10313919555840.

The previous prime is 31012052042977. The next prime is 31012052043019. The reversal of 31012052043012 is 21034025021013.

It is a super-3 number, since 3×31012052043012³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31012052043019) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 71641062 + ... + 72072642.

It is an arithmetic number, because the mean of its divisors is an integer number (1510947866064).

Almost surely, 2^{31012052043012} is an apocalyptic number.

It is an amenable number.

31012052043012 is an abundant number, since it is smaller than the sum of its proper divisors (41513445528060).

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

31012052043012 is a wasteful number, since it uses less digits than its factorization.

31012052043012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445148 (or 445146 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31012052043012 its reverse (21034025021013), we get a palindrome (52046077064025).

The spelling of 31012052043012 in words is "thirty-one trillion, twelve billion, fifty-two million, forty-three thousand, twelve".