20340263012 has 24 divisors (see below), whose sum is σ = 35943548256. Its totient is φ = 10070759808.

The previous prime is 20340262997. The next prime is 20340263063. The reversal of 20340263012 is 21036204302.

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, 1139468 + ... + 1157180.

It is an arithmetic number, because the mean of its divisors is an integer number (1497647844).

Almost surely, 2^20340263012 is an apocalyptic number.

It is an amenable number.

20340263012 is a deficient number, since it is larger than the sum of its proper divisors (15603285244).

20340263012 is a wasteful number, since it uses less digits than its factorization.

20340263012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20507 (or 20505 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20340263012 its reverse (21036204302), we get a palindrome (41376467314).

The spelling of 20340263012 in words is "twenty billion, three hundred forty million, two hundred sixty-three thousand, twelve".