31433154132 has 12 divisors (see below), whose sum is σ = 73344026336. Its totient is φ = 10477718040.

The previous prime is 31433154107. The next prime is 31433154167. The reversal of 31433154132 is 23145133413.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31433154132.

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, 1309714744 + ... + 1309714767.

Almost surely, 2^31433154132 is an apocalyptic number.

It is an amenable number.

31433154132 is an abundant number, since it is smaller than the sum of its proper divisors (41910872204).

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

31433154132 is a wasteful number, since it uses less digits than its factorization.

31433154132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619429518 (or 2619429516 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

Adding to 31433154132 its reverse (23145133413), we get a palindrome (54578287545).

The spelling of 31433154132 in words is "thirty-one billion, four hundred thirty-three million, one hundred fifty-four thousand, one hundred thirty-two".