20432111402 has 8 divisors (see below), whose sum is σ = 32451000516. Its totient is φ = 9615111232.

The previous prime is 20432111393. The next prime is 20432111417. The reversal of 20432111402 is 20411123402.

It can be written as a sum of positive squares in 2 ways, for example, as 20371567441 + 60543961 = 142729^2 + 7781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 300472193 + ... + 300472260.

Almost surely, 2^20432111402 is an apocalyptic number.

20432111402 is a deficient number, since it is larger than the sum of its proper divisors (12018889114).

20432111402 is a wasteful number, since it uses less digits than its factorization.

20432111402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600944472.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20432111402 its reverse (20411123402), we get a palindrome (40843234804).

The spelling of 20432111402 in words is "twenty billion, four hundred thirty-two million, one hundred eleven thousand, four hundred two".