20510201420 has 12 divisors (see below), whose sum is σ = 43071423024. Its totient is φ = 8204080560.

The previous prime is 20510201419. The next prime is 20510201441. The reversal of 20510201420 is 2410201502.

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, 512755016 + ... + 512755055.

It is an arithmetic number, because the mean of its divisors is an integer number (3589285252).

Almost surely, 2^20510201420 is an apocalyptic number.

20510201420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20510201420 is an abundant number, since it is smaller than the sum of its proper divisors (22561221604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20510201420 is a wasteful number, since it uses less digits than its factorization.

20510201420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025510080 (or 1025510078 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 20510201420 its reverse (2410201502), we get a palindrome (22920402922).

The spelling of 20510201420 in words is "twenty billion, five hundred ten million, two hundred one thousand, four hundred twenty".