21131431341122 has 8 divisors (see below), whose sum is σ = 31847370457872. Its totient is φ = 10515641188500.

The previous prime is 21131431341121. The next prime is 21131431341133. The reversal of 21131431341122 is 22114313413112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21131431341121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25037240504 + ... + 25037241347.

It is an arithmetic number, because the mean of its divisors is an integer number (3980921307234).

Almost surely, 2^{21131431341122} is an apocalyptic number.

21131431341122 is a deficient number, since it is larger than the sum of its proper divisors (10715939116750).

21131431341122 is a wasteful number, since it uses less digits than its factorization.

21131431341122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50074482064.

The product of its digits is 3456, while the sum is 29.

Adding to 21131431341122 its reverse (22114313413112), we get a palindrome (43245744754234).

The spelling of 21131431341122 in words is "twenty-one trillion, one hundred thirty-one billion, four hundred thirty-one million, three hundred forty-one thousand, one hundred twenty-two".