20430034304402 has 4 divisors (see below), whose sum is σ = 30645051456606. Its totient is φ = 10215017152200.

The previous prime is 20430034304279. The next prime is 20430034304411. The reversal of 20430034304402 is 20440343003402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12357327059401 + 8072707245001 = 3515299^2 + 2841251^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5107508576099 + ... + 5107508576102.

Almost surely, 2^{20430034304402} is an apocalyptic number.

20430034304402 is a deficient number, since it is larger than the sum of its proper divisors (10215017152204).

20430034304402 is a wasteful number, since it uses less digits than its factorization.

20430034304402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215017152203.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 20430034304402 its reverse (20440343003402), we get a palindrome (40870377307804).

The spelling of 20430034304402 in words is "twenty trillion, four hundred thirty billion, thirty-four million, three hundred four thousand, four hundred two".