4242521002135 has 16 divisors (see below), whose sum is σ = 5484430407456. Its totient is φ = 3131916939648.

The previous prime is 4242521002039. The next prime is 4242521002157. The reversal of 4242521002135 is 5312001252424.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4242521002135 - 2³⁹ = 3692765188247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4242521002097 and 4242521002106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10441264 + ... + 10839973.

It is an arithmetic number, because the mean of its divisors is an integer number (342776900466).

Almost surely, 2^{4242521002135} is an apocalyptic number.

4242521002135 is a deficient number, since it is larger than the sum of its proper divisors (1241909405321).

4242521002135 is a wasteful number, since it uses less digits than its factorization.

4242521002135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21284322.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 4242521002135 its reverse (5312001252424), we get a palindrome (9554522254559).

The spelling of 4242521002135 in words is "four trillion, two hundred forty-two billion, five hundred twenty-one million, two thousand, one hundred thirty-five".