20402630334010 has 32 divisors (see below), whose sum is σ = 38885385249360. Its totient is φ = 7680916733952.

The previous prime is 20402630333903. The next prime is 20402630334017. The reversal of 20402630334010 is 1043303620402.

It can be written as a sum of positive squares in 8 ways, for example, as 8031561668001 + 12371068666009 = 2834001^2 + 3517253^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20402630334010.

It is not an unprimeable number, because it can be changed into a prime (20402630334017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19247526 + ... + 20279854.

Almost surely, 2^{20402630334010} is an apocalyptic number.

20402630334010 is a deficient number, since it is larger than the sum of its proper divisors (18482754915350).

20402630334010 is a wasteful number, since it uses less digits than its factorization.

20402630334010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148610.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 20402630334010 its reverse (1043303620402), we get a palindrome (21445933954412).

The spelling of 20402630334010 in words is "twenty trillion, four hundred two billion, six hundred thirty million, three hundred thirty-four thousand, ten".