42102323100321 has 32 divisors (see below), whose sum is σ = 62898251165568. Its totient is φ = 24825588387840.

The previous prime is 42102323100311. The next prime is 42102323100323. The reversal of 42102323100321 is 12300132320124.

It is not a de Polignac number, because 42102323100321 - 2⁵ = 42102323100289 is a prime.

It is a super-2 number, since 2×42102323100321² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42102323100291 and 42102323100300.

It is not an unprimeable number, because it can be changed into a prime (42102323100323) 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, 22033921 + ... + 23868353.

It is an arithmetic number, because the mean of its divisors is an integer number (1965570348924).

Almost surely, 2^{42102323100321} is an apocalyptic number.

It is an amenable number.

42102323100321 is a deficient number, since it is larger than the sum of its proper divisors (20795928065247).

42102323100321 is a wasteful number, since it uses less digits than its factorization.

42102323100321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853281.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 42102323100321 its reverse (12300132320124), we get a palindrome (54402455420445).

The spelling of 42102323100321 in words is "forty-two trillion, one hundred two billion, three hundred twenty-three million, one hundred thousand, three hundred twenty-one".