20430374212 has 12 divisors (see below), whose sum is σ = 36719456620. Its totient is φ = 9939100896.

The previous prime is 20430374201. The next prime is 20430374231. The reversal of 20430374212 is 21247303402.

It can be written as a sum of positive squares in 2 ways, for example, as 14463429696 + 5966944516 = 120264^2 + 77246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69021387 + ... + 69021682.

Almost surely, 2^20430374212 is an apocalyptic number.

It is an amenable number.

20430374212 is a deficient number, since it is larger than the sum of its proper divisors (16289082408).

20430374212 is a wasteful number, since it uses less digits than its factorization.

20430374212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138043110 (or 138043108 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 20430374212 its reverse (21247303402), we get a palindrome (41677677614).

The spelling of 20430374212 in words is "twenty billion, four hundred thirty million, three hundred seventy-four thousand, two hundred twelve".