202142121230 has 64 divisors (see below), whose sum is σ = 422061373440. Its totient is φ = 68269891200.

The previous prime is 202142121227. The next prime is 202142121253. The reversal of 202142121230 is 32121241202.

It is a super-3 number, since 3×202142121230³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 5852351 + ... + 5886789.

It is an arithmetic number, because the mean of its divisors is an integer number (6594708960).

Almost surely, 2^202142121230 is an apocalyptic number.

202142121230 is an abundant number, since it is smaller than the sum of its proper divisors (219919252210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202142121230 is a wasteful number, since it uses less digits than its factorization.

202142121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35705.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 202142121230 its reverse (32121241202), we get a palindrome (234263362432).

The spelling of 202142121230 in words is "two hundred two billion, one hundred forty-two million, one hundred twenty-one thousand, two hundred thirty".