20401411211142 has 64 divisors (see below), whose sum is σ = 45080108430336. Its totient is φ = 6116771185920.

The previous prime is 20401411211119. The next prime is 20401411211171. The reversal of 20401411211142 is 24111211410402.

It is a super-2 number, since 2×20401411211142² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21111534 + ... + 22056737.

It is an arithmetic number, because the mean of its divisors is an integer number (704376694224).

Almost surely, 2^{20401411211142} is an apocalyptic number.

20401411211142 is an abundant number, since it is smaller than the sum of its proper divisors (24678697219194).

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

20401411211142 is a wasteful number, since it uses less digits than its factorization.

20401411211142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43168445.

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 20401411211142 its reverse (24111211410402), we get a palindrome (44512622621544).

The spelling of 20401411211142 in words is "twenty trillion, four hundred one billion, four hundred eleven million, two hundred eleven thousand, one hundred forty-two".