31012535012 has 6 divisors (see below), whose sum is σ = 54271936278. Its totient is φ = 15506267504.

The previous prime is 31012535009. The next prime is 31012535027. The reversal of 31012535012 is 21053521013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27365099776 + 3647435236 = 165424^2 + 60394^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3876566873 + ... + 3876566880.

It is an arithmetic number, because the mean of its divisors is an integer number (9045322713).

Almost surely, 2^31012535012 is an apocalyptic number.

It is an amenable number.

31012535012 is a deficient number, since it is larger than the sum of its proper divisors (23259401266).

31012535012 is a wasteful number, since it uses less digits than its factorization.

31012535012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7753133757 (or 7753133755 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 31012535012 in words is "thirty-one billion, twelve million, five hundred thirty-five thousand, twelve".