20331001420 has 48 divisors (see below), whose sum is σ = 45224857440. Its totient is φ = 7650929664.

The previous prime is 20331001399. The next prime is 20331001451. The reversal of 20331001420 is 2410013302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20331001394 and 20331001403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940291 + ... + 961669.

It is an arithmetic number, because the mean of its divisors is an integer number (942184530).

Almost surely, 2^20331001420 is an apocalyptic number.

20331001420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331001420 is an abundant number, since it is smaller than the sum of its proper divisors (24893856020).

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

20331001420 is a wasteful number, since it uses less digits than its factorization.

20331001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24202 (or 24200 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20331001420 its reverse (2410013302), we get a palindrome (22741014722).

The spelling of 20331001420 in words is "twenty billion, three hundred thirty-one million, one thousand, four hundred twenty".