202121131430 has 8 divisors (see below), whose sum is σ = 363818036592. Its totient is φ = 80848452568.

The previous prime is 202121131393. The next prime is 202121131483. The reversal of 202121131430 is 34131121202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10106056562 + ... + 10106056581.

It is an arithmetic number, because the mean of its divisors is an integer number (45477254574).

Almost surely, 2^202121131430 is an apocalyptic number.

202121131430 is a deficient number, since it is larger than the sum of its proper divisors (161696905162).

202121131430 is a wasteful number, since it uses less digits than its factorization.

202121131430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20212113150.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 202121131430 its reverse (34131121202), we get a palindrome (236252252632).

The spelling of 202121131430 in words is "two hundred two billion, one hundred twenty-one million, one hundred thirty-one thousand, four hundred thirty".