20213403212 has 6 divisors (see below), whose sum is σ = 35373455628. Its totient is φ = 10106701604.

The previous prime is 20213403179. The next prime is 20213403239. The reversal of 20213403212 is 21230431202.

It is a super-3 number, since 3×20213403212³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526675398 + ... + 2526675405.

It is an arithmetic number, because the mean of its divisors is an integer number (5895575938).

Almost surely, 2^20213403212 is an apocalyptic number.

It is an amenable number.

20213403212 is a deficient number, since it is larger than the sum of its proper divisors (15160052416).

20213403212 is a wasteful number, since it uses less digits than its factorization.

20213403212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053350807 (or 5053350805 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20213403212 its reverse (21230431202), we get a palindrome (41443834414).

The spelling of 20213403212 in words is "twenty billion, two hundred thirteen million, four hundred three thousand, two hundred twelve".