1223202110131 has 4 divisors (see below), whose sum is σ = 1223363553912. Its totient is φ = 1223040666352.

The previous prime is 1223202110129. The next prime is 1223202110183. The reversal of 1223202110131 is 1310112023221.

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 1223202110131 - 2¹ = 1223202110129 is a prime.

It is a super-2 number, since 2×1223202110131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223202110099 and 1223202110108.

It is not an unprimeable number, because it can be changed into a prime (1223202110101) 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, 80710525 + ... + 80725678.

It is an arithmetic number, because the mean of its divisors is an integer number (305840888478).

Almost surely, 2^{1223202110131} is an apocalyptic number.

1223202110131 is a deficient number, since it is larger than the sum of its proper divisors (161443781).

1223202110131 is an equidigital number, since it uses as much as digits as its factorization.

1223202110131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161443780.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1223202110131 its reverse (1310112023221), we get a palindrome (2533314133352).

The spelling of 1223202110131 in words is "one trillion, two hundred twenty-three billion, two hundred two million, one hundred ten thousand, one hundred thirty-one".