1131223203331 has 8 divisors (see below), whose sum is σ = 1225282227120. Its totient is φ = 1038170158752.

The previous prime is 1131223203329. The next prime is 1131223203361. The reversal of 1131223203331 is 1333023221311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131223203331 - 2¹ = 1131223203329 is a prime.

It is a super-2 number, since 2×1131223203331² (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 = 1131223203296 and 1131223203305.

It is not an unprimeable number, because it can be changed into a prime (1131223203361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251492461 + ... + 251496958.

It is an arithmetic number, because the mean of its divisors is an integer number (153160278390).

Almost surely, 2^{1131223203331} is an apocalyptic number.

1131223203331 is a deficient number, since it is larger than the sum of its proper divisors (94059023789).

1131223203331 is a wasteful number, since it uses less digits than its factorization.

1131223203331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502989605.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1131223203331 its reverse (1333023221311), we get a palindrome (2464246424642).

The spelling of 1131223203331 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-three million, two hundred three thousand, three hundred thirty-one".