20310032012 has 6 divisors (see below), whose sum is σ = 35542556028. Its totient is φ = 10155016004.

The previous prime is 20310032009. The next prime is 20310032047. The reversal of 20310032012 is 21023001302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2538753998 + ... + 2538754005.

It is an arithmetic number, because the mean of its divisors is an integer number (5923759338).

Almost surely, 2^20310032012 is an apocalyptic number.

It is an amenable number.

20310032012 is a deficient number, since it is larger than the sum of its proper divisors (15232524016).

20310032012 is a wasteful number, since it uses less digits than its factorization.

20310032012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077508007 (or 5077508005 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20310032012 its reverse (21023001302), we get a palindrome (41333033314).

The spelling of 20310032012 in words is "twenty billion, three hundred ten million, thirty-two thousand, twelve".