31012022012 has 6 divisors (see below), whose sum is σ = 54271038528. Its totient is φ = 15506011004.

The previous prime is 31012021993. The next prime is 31012022029. The reversal of 31012022012 is 21022021013.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3876502748 + ... + 3876502755.

It is an arithmetic number, because the mean of its divisors is an integer number (9045173088).

Almost surely, 2^31012022012 is an apocalyptic number.

It is an amenable number.

31012022012 is a deficient number, since it is larger than the sum of its proper divisors (23259016516).

31012022012 is a wasteful number, since it uses less digits than its factorization.

31012022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7753005507 (or 7753005505 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31012022012 its reverse (21022021013), we get a palindrome (52034043025).

Subtracting from 31012022012 its reverse (21022021013), we obtain a palindrome (9990000999).

The spelling of 31012022012 in words is "thirty-one billion, twelve million, twenty-two thousand, twelve".