20351420452210 has 8 divisors (see below), whose sum is σ = 36632556813996. Its totient is φ = 8140568180880.

The previous prime is 20351420452169. The next prime is 20351420452229. The reversal of 20351420452210 is 1225402415302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19879996772601 + 471423679609 = 4458699^2 + 686603^2 .

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, 1017571022601 + ... + 1017571022620.

Almost surely, 2^{20351420452210} is an apocalyptic number.

20351420452210 is a deficient number, since it is larger than the sum of its proper divisors (16281136361786).

20351420452210 is a wasteful number, since it uses less digits than its factorization.

20351420452210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035142045228.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 20351420452210 its reverse (1225402415302), we get a palindrome (21576822867512).

The spelling of 20351420452210 in words is "twenty trillion, three hundred fifty-one billion, four hundred twenty million, four hundred fifty-two thousand, two hundred ten".