210330421131 has 4 divisors (see below), whose sum is σ = 280440561512. Its totient is φ = 140220280752.

The previous prime is 210330421057. The next prime is 210330421141. The reversal of 210330421131 is 131124033012.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 210330421131 - 2¹⁵ = 210330388363 is a prime.

It is a super-3 number, since 3×210330421131³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210330421098 and 210330421107.

It is not an unprimeable number, because it can be changed into a prime (210330421141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35055070186 + ... + 35055070191.

It is an arithmetic number, because the mean of its divisors is an integer number (70110140378).

Almost surely, 2^210330421131 is an apocalyptic number.

210330421131 is a deficient number, since it is larger than the sum of its proper divisors (70110140381).

210330421131 is an equidigital number, since it uses as much as digits as its factorization.

210330421131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70110140380.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 210330421131 its reverse (131124033012), we get a palindrome (341454454143).

The spelling of 210330421131 in words is "two hundred ten billion, three hundred thirty million, four hundred twenty-one thousand, one hundred thirty-one".