12312020203 has 32 divisors (see below), whose sum is σ = 14577408000. Its totient is φ = 10182122496.

The previous prime is 12312020179. The next prime is 12312020263. The reversal of 12312020203 is 30202021321.

It is a de Polignac number, because none of the positive numbers 2^k-12312020203 is a prime.

It is a super-2 number, since 2×12312020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312020263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4560348 + ... + 4563046.

It is an arithmetic number, because the mean of its divisors is an integer number (455544000).

Almost surely, 2^12312020203 is an apocalyptic number.

12312020203 is a deficient number, since it is larger than the sum of its proper divisors (2265387797).

12312020203 is a wasteful number, since it uses less digits than its factorization.

12312020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12312020203 its reverse (30202021321), we get a palindrome (42514041524).

The spelling of 12312020203 in words is "twelve billion, three hundred twelve million, twenty thousand, two hundred three".