2012223031131 has 4 divisors (see below), whose sum is σ = 2682964041512. Its totient is φ = 1341482020752.

The previous prime is 2012223031127. The next prime is 2012223031141. The reversal of 2012223031131 is 1311303222102.

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

It is not a de Polignac number, because 2012223031131 - 2² = 2012223031127 is a prime.

It is a super-2 number, since 2×2012223031131² (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 = 2012223031098 and 2012223031107.

It is not an unprimeable number, because it can be changed into a prime (2012223031121) 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, 335370505186 + ... + 335370505191.

It is an arithmetic number, because the mean of its divisors is an integer number (670741010378).

Almost surely, 2^{2012223031131} is an apocalyptic number.

2012223031131 is a deficient number, since it is larger than the sum of its proper divisors (670741010381).

2012223031131 is an equidigital number, since it uses as much as digits as its factorization.

2012223031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670741010380.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2012223031131 its reverse (1311303222102), we get a palindrome (3323526253233).

The spelling of 2012223031131 in words is "two trillion, twelve billion, two hundred twenty-three million, thirty-one thousand, one hundred thirty-one".