31443303412 has 24 divisors (see below), whose sum is σ = 55868359904. Its totient is φ = 15481094112.

The previous prime is 31443303383. The next prime is 31443303431. The reversal of 31443303412 is 21430334413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728623 + ... + 770569.

Almost surely, 2^31443303412 is an apocalyptic number.

It is an amenable number.

31443303412 is a deficient number, since it is larger than the sum of its proper divisors (24425056492).

31443303412 is a wasteful number, since it uses less digits than its factorization.

31443303412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44815 (or 44813 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31443303412 its reverse (21430334413), we get a palindrome (52873637825).

The spelling of 31443303412 in words is "thirty-one billion, four hundred forty-three million, three hundred three thousand, four hundred twelve".