20110310421 has 32 divisors (see below), whose sum is σ = 28250173440. Its totient is φ = 12708124800.

The previous prime is 20110310417. The next prime is 20110310431. The reversal of 20110310421 is 12401301102.

It is not a de Polignac number, because 20110310421 - 2² = 20110310417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20110310421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110310431) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1535326 + ... + 1548368.

It is an arithmetic number, because the mean of its divisors is an integer number (882817920).

Almost surely, 2^20110310421 is an apocalyptic number.

It is an amenable number.

20110310421 is a deficient number, since it is larger than the sum of its proper divisors (8139863019).

20110310421 is a wasteful number, since it uses less digits than its factorization.

20110310421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13417.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20110310421 its reverse (12401301102), we get a palindrome (32511611523).

The spelling of 20110310421 in words is "twenty billion, one hundred ten million, three hundred ten thousand, four hundred twenty-one".