20401432032130 has 8 divisors (see below), whose sum is σ = 36722577657852. Its totient is φ = 8160572812848.

The previous prime is 20401432032101. The next prime is 20401432032133. The reversal of 20401432032130 is 3123023410402.

It can be written as a sum of positive squares in 2 ways, for example, as 18837414163681 + 1564017868449 = 4340209^2 + 1250607^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20401432032095 and 20401432032104.

It is not an unprimeable number, because it can be changed into a prime (20401432032133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020071601597 + ... + 1020071601616.

Almost surely, 2^{20401432032130} is an apocalyptic number.

20401432032130 is a deficient number, since it is larger than the sum of its proper divisors (16321145625722).

20401432032130 is a wasteful number, since it uses less digits than its factorization.

20401432032130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040143203220.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20401432032130 its reverse (3123023410402), we get a palindrome (23524455442532).

The spelling of 20401432032130 in words is "twenty trillion, four hundred one billion, four hundred thirty-two million, thirty-two thousand, one hundred thirty".