10421131323442 has 24 divisors (see below), whose sum is σ = 18198254052720. Its totient is φ = 4462651667880.

The previous prime is 10421131323413. The next prime is 10421131323443. The reversal of 10421131323442 is 24432313112401.

It is a happy number.

10421131323442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (10421131323443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42107784 + ... + 42354547.

It is an arithmetic number, because the mean of its divisors is an integer number (758260585530).

Almost surely, 2^{10421131323442} is an apocalyptic number.

10421131323442 is a deficient number, since it is larger than the sum of its proper divisors (7777122729278).

10421131323442 is a wasteful number, since it uses less digits than its factorization.

10421131323442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84463606 (or 84463599 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 10421131323442 its reverse (24432313112401), we get a palindrome (34853444435843).

The spelling of 10421131323442 in words is "ten trillion, four hundred twenty-one billion, one hundred thirty-one million, three hundred twenty-three thousand, four hundred forty-two".