20012213403 has 80 divisors (see below), whose sum is σ = 37260410880. Its totient is φ = 10421970624.

The previous prime is 20012213399. The next prime is 20012213407. The reversal of 20012213403 is 30431221002.

20012213403 is a `hidden beast` number, since 200 + 122 + 1 + 340 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (20012213399) and next prime (20012213407).

It is not a de Polignac number, because 20012213403 - 2² = 20012213399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012213407) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 565126 + ... + 599492.

It is an arithmetic number, because the mean of its divisors is an integer number (465755136).

Almost surely, 2^20012213403 is an apocalyptic number.

20012213403 is a deficient number, since it is larger than the sum of its proper divisors (17248197477).

20012213403 is a wasteful number, since it uses less digits than its factorization.

20012213403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34478 (or 34469 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20012213403 its reverse (30431221002), we get a palindrome (50443434405).

The spelling of 20012213403 in words is "twenty billion, twelve million, two hundred thirteen thousand, four hundred three".