20031212203 has 8 divisors (see below), whose sum is σ = 20102275872. Its totient is φ = 19960275456.

The previous prime is 20031212197. The next prime is 20031212207. The reversal of 20031212203 is 30221213002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20031212203 - 2⁹ = 20031211691 is a prime.

It is a super-2 number, since 2×20031212203² (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 (20031212207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290226 + ... + 352552.

It is an arithmetic number, because the mean of its divisors is an integer number (2512784484).

Almost surely, 2^20031212203 is an apocalyptic number.

20031212203 is a deficient number, since it is larger than the sum of its proper divisors (71063669).

20031212203 is an equidigital number, since it uses as much as digits as its factorization.

20031212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63461.

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

Adding to 20031212203 its reverse (30221213002), we get a palindrome (50252425205).

The spelling of 20031212203 in words is "twenty billion, thirty-one million, two hundred twelve thousand, two hundred three".