243135021002 has 64 divisors (see below), whose sum is σ = 381191602176. Its totient is φ = 116229254400.

The previous prime is 243135020993. The next prime is 243135021013. The reversal of 243135021002 is 200120531342.

It is a super-2 number, since 2×243135021002² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327233843 + ... + 327234585.

It is an arithmetic number, because the mean of its divisors is an integer number (5956118784).

Almost surely, 2^243135021002 is an apocalyptic number.

243135021002 is a deficient number, since it is larger than the sum of its proper divisors (138056581174).

243135021002 is a wasteful number, since it uses less digits than its factorization.

243135021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 243135021002 its reverse (200120531342), we get a palindrome (443255552344).

The spelling of 243135021002 in words is "two hundred forty-three billion, one hundred thirty-five million, twenty-one thousand, two".