31432533433212 has 12 divisors (see below), whose sum is σ = 73342578010856. Its totient is φ = 10477511144400.

The previous prime is 31432533433193. The next prime is 31432533433253. The reversal of 31432533433212 is 21233433523413.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309688893039 + ... + 1309688893062.

Almost surely, 2^{31432533433212} is an apocalyptic number.

It is an amenable number.

31432533433212 is an abundant number, since it is smaller than the sum of its proper divisors (41910044577644).

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

31432533433212 is a wasteful number, since it uses less digits than its factorization.

31432533433212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619377786108 (or 2619377786106 counting only the distinct ones).

The product of its digits is 466560, while the sum is 39.

Adding to 31432533433212 its reverse (21233433523413), we get a palindrome (52665966956625).

The spelling of 31432533433212 in words is "thirty-one trillion, four hundred thirty-two billion, five hundred thirty-three million, four hundred thirty-three thousand, two hundred twelve".