20433142130 has 16 divisors (see below), whose sum is σ = 36806704344. Its totient is φ = 8167246080.

The previous prime is 20433142111. The next prime is 20433142133. The reversal of 20433142130 is 3124133402.

It can be written as a sum of positive squares in 4 ways, for example, as 6525893089 + 13907249041 = 80783^2 + 117929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20433142096 and 20433142105.

It is not an unprimeable number, because it can be changed into a prime (20433142133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737057 + ... + 764276.

Almost surely, 2^20433142130 is an apocalyptic number.

20433142130 is a deficient number, since it is larger than the sum of its proper divisors (16373562214).

20433142130 is a wasteful number, since it uses less digits than its factorization.

20433142130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502701.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20433142130 its reverse (3124133402), we get a palindrome (23557275532).

The spelling of 20433142130 in words is "twenty billion, four hundred thirty-three million, one hundred forty-two thousand, one hundred thirty".