20310260421 has 16 divisors (see below), whose sum is σ = 30495172608. Its totient is φ = 11912175600.

The previous prime is 20310260413. The next prime is 20310260437. The reversal of 20310260421 is 12406201302.

It is not a de Polignac number, because 20310260421 - 2³ = 20310260413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310260441) 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, 9925791 + ... + 9927836.

It is an arithmetic number, because the mean of its divisors is an integer number (1905948288).

Almost surely, 2^20310260421 is an apocalyptic number.

It is an amenable number.

20310260421 is a deficient number, since it is larger than the sum of its proper divisors (10184912187).

20310260421 is a wasteful number, since it uses less digits than its factorization.

20310260421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19853672.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20310260421 its reverse (12406201302), we get a palindrome (32716461723).

The spelling of 20310260421 in words is "twenty billion, three hundred ten million, two hundred sixty thousand, four hundred twenty-one".