20031003213 has 32 divisors (see below), whose sum is σ = 30299068800. Its totient is φ = 11669204736.

The previous prime is 20031003203. The next prime is 20031003217. The reversal of 20031003213 is 31230013002.

It is not a de Polignac number, because 20031003213 - 2⁴ = 20031003197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20031003192 and 20031003201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031003217) 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, 1049431 + ... + 1068347.

It is an arithmetic number, because the mean of its divisors is an integer number (946845900).

Almost surely, 2^20031003213 is an apocalyptic number.

It is an amenable number.

20031003213 is a deficient number, since it is larger than the sum of its proper divisors (10268065587).

20031003213 is a wasteful number, since it uses less digits than its factorization.

20031003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20031003213 its reverse (31230013002), we get a palindrome (51261016215).

The spelling of 20031003213 in words is "twenty billion, thirty-one million, three thousand, two hundred thirteen".