12312301020 has 24 divisors (see below), whose sum is σ = 34474443024. Its totient is φ = 3283280256.

The previous prime is 12312300991. The next prime is 12312301063. The reversal of 12312301020 is 2010321321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102602449 + ... + 102602568.

It is an arithmetic number, because the mean of its divisors is an integer number (1436435126).

Almost surely, 2^12312301020 is an apocalyptic number.

12312301020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312301020 is an abundant number, since it is smaller than the sum of its proper divisors (22162142004).

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

12312301020 is a wasteful number, since it uses less digits than its factorization.

12312301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205205029 (or 205205027 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12312301020 its reverse (2010321321), we get a palindrome (14322622341).

The spelling of 12312301020 in words is "twelve billion, three hundred twelve million, three hundred one thousand, twenty".