20334042012 has 48 divisors (see below), whose sum is σ = 47789127680. Its totient is φ = 6729101568.

The previous prime is 20334041951. The next prime is 20334042013. The reversal of 20334042012 is 21024043302.

It is a self number, because there is not a number n which added to its sum of digits gives 20334042012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334042013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1968453 + ... + 1978755.

Almost surely, 2^20334042012 is an apocalyptic number.

It is an amenable number.

20334042012 is an abundant number, since it is smaller than the sum of its proper divisors (27455085668).

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

20334042012 is a wasteful number, since it uses less digits than its factorization.

20334042012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11482 (or 11480 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20334042012 its reverse (21024043302), we get a palindrome (41358085314).

The spelling of 20334042012 in words is "twenty billion, three hundred thirty-four million, forty-two thousand, twelve".