210131210131 has 8 divisors (see below), whose sum is σ = 212234160528. Its totient is φ = 208028700000.

The previous prime is 210131210111. The next prime is 210131210143. The reversal of 210131210131 is 131012131012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 210131210131 - 2⁵ = 210131210099 is a prime.

It is a super-2 number, since 2×210131210131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210131210111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894936 + ... + 1105066.

It is an arithmetic number, because the mean of its divisors is an integer number (26529270066).

Almost surely, 2^210131210131 is an apocalyptic number.

210131210131 is a deficient number, since it is larger than the sum of its proper divisors (2102950397).

210131210131 is a wasteful number, since it uses less digits than its factorization.

210131210131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220133.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 210131210131 its reverse (131012131012), we get a palindrome (341143341143).

The spelling of 210131210131 in words is "two hundred ten billion, one hundred thirty-one million, two hundred ten thousand, one hundred thirty-one".