210023322131 has 4 divisors (see below), whose sum is σ = 240026653872. Its totient is φ = 180019990392.

The previous prime is 210023322127. The next prime is 210023322149. The reversal of 210023322131 is 131223320012.

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

It is a cyclic number.

It is not a de Polignac number, because 210023322131 - 2² = 210023322127 is a prime.

It is a super-2 number, since 2×210023322131² (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 (210023322161) 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, 15001665860 + ... + 15001665873.

It is an arithmetic number, because the mean of its divisors is an integer number (60006663468).

Almost surely, 2^210023322131 is an apocalyptic number.

210023322131 is a deficient number, since it is larger than the sum of its proper divisors (30003331741).

210023322131 is an equidigital number, since it uses as much as digits as its factorization.

210023322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30003331740.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 210023322131 its reverse (131223320012), we get a palindrome (341246642143).

The spelling of 210023322131 in words is "two hundred ten billion, twenty-three million, three hundred twenty-two thousand, one hundred thirty-one".