31435533012 has 48 divisors (see below), whose sum is σ = 81539988992. Its totient is φ = 9360455040.

The previous prime is 31435532971. The next prime is 31435533029. The reversal of 31435533012 is 21033553413.

It is a congruent number.

It is an unprimeable number.

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, 3245323 + ... + 3254994.

Almost surely, 2^31435533012 is an apocalyptic number.

It is an amenable number.

31435533012 is an abundant number, since it is smaller than the sum of its proper divisors (50104455980).

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

31435533012 is a wasteful number, since it uses less digits than its factorization.

31435533012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500368 (or 6500366 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

The spelling of 31435533012 in words is "thirty-one billion, four hundred thirty-five million, five hundred thirty-three thousand, twelve".