223020210131 has 4 divisors (see below), whose sum is σ = 223097462832. Its totient is φ = 222942957432.

The previous prime is 223020210053. The next prime is 223020210173. The reversal of 223020210131 is 131012020322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131012020322 = 2 ⋅65506010161.

It is a cyclic number.

It is not a de Polignac number, because 223020210131 - 2³⁰ = 221946468307 is a prime.

It is a super-2 number, since 2×223020210131² (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 (223020210331) 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, 38622020 + ... + 38627793.

It is an arithmetic number, because the mean of its divisors is an integer number (55774365708).

Almost surely, 2^223020210131 is an apocalyptic number.

223020210131 is a deficient number, since it is larger than the sum of its proper divisors (77252701).

223020210131 is an equidigital number, since it uses as much as digits as its factorization.

223020210131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77252700.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 223020210131 its reverse (131012020322), we get a palindrome (354032230453).

The spelling of 223020210131 in words is "two hundred twenty-three billion, twenty million, two hundred ten thousand, one hundred thirty-one".