20402300212 has 24 divisors (see below), whose sum is σ = 40839512000. Its totient is φ = 8736361920.

The previous prime is 20402300207. The next prime is 20402300251. The reversal of 20402300212 is 21200320402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278337 + ... + 343912.

Almost surely, 2^20402300212 is an apocalyptic number.

It is an amenable number.

20402300212 is an abundant number, since it is smaller than the sum of its proper divisors (20437211788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20402300212 is a wasteful number, since it uses less digits than its factorization.

20402300212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623431 (or 623429 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20402300212 its reverse (21200320402), we get a palindrome (41602620614).

The spelling of 20402300212 in words is "twenty billion, four hundred two million, three hundred thousand, two hundred twelve".