210231322021131 has 4 divisors (see below), whose sum is σ = 280308429361512. Its totient is φ = 140154214680752.

The previous prime is 210231322021103. The next prime is 210231322021153. The reversal of 210231322021131 is 131120223132012.

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 210231322021131 - 2⁷ = 210231322021003 is a prime.

It is a super-2 number, since 2×210231322021131² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210231322001131) by changing a digit.

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, 35038553670186 + ... + 35038553670191.

It is an arithmetic number, because the mean of its divisors is an integer number (70077107340378).

Almost surely, 2^{210231322021131} is an apocalyptic number.

210231322021131 is a deficient number, since it is larger than the sum of its proper divisors (70077107340381).

210231322021131 is an equidigital number, since it uses as much as digits as its factorization.

210231322021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70077107340380.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 210231322021131 its reverse (131120223132012), we get a palindrome (341351545153143).

The spelling of 210231322021131 in words is "two hundred ten trillion, two hundred thirty-one billion, three hundred twenty-two million, twenty-one thousand, one hundred thirty-one".