20421010311141 has 32 divisors (see below), whose sum is σ = 29812349952000. Its totient is φ = 12331009872000.

The previous prime is 20421010311137. The next prime is 20421010311157. The reversal of 20421010311141 is 14111301012402.

It is not a de Polignac number, because 20421010311141 - 2² = 20421010311137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20421010311181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8864956 + ... + 10928378.

It is an arithmetic number, because the mean of its divisors is an integer number (931635936000).

Almost surely, 2^{20421010311141} is an apocalyptic number.

It is an amenable number.

20421010311141 is a deficient number, since it is larger than the sum of its proper divisors (9391339640859).

20421010311141 is a wasteful number, since it uses less digits than its factorization.

20421010311141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064537.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 20421010311141 its reverse (14111301012402), we get a palindrome (34532311323543).

The spelling of 20421010311141 in words is "twenty trillion, four hundred twenty-one billion, ten million, three hundred eleven thousand, one hundred forty-one".