421253101235 has 16 divisors (see below), whose sum is σ = 510931634976. Its totient is φ = 333400666368.

The previous prime is 421253101151. The next prime is 421253101237. The reversal of 421253101235 is 532101352124.

It is a cyclic number.

It is not a de Polignac number, because 421253101235 - 2¹⁰ = 421253100211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421253101198 and 421253101207.

It is not an unprimeable number, because it can be changed into a prime (421253101237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848729 + ... + 1250138.

It is an arithmetic number, because the mean of its divisors is an integer number (31933227186).

Almost surely, 2^421253101235 is an apocalyptic number.

421253101235 is a deficient number, since it is larger than the sum of its proper divisors (89678533741).

421253101235 is a wasteful number, since it uses less digits than its factorization.

421253101235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099302.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 421253101235 its reverse (532101352124), we get a palindrome (953354453359).

The spelling of 421253101235 in words is "four hundred twenty-one billion, two hundred fifty-three million, one hundred one thousand, two hundred thirty-five".