1228411131 has 8 divisors (see below), whose sum is σ = 1638496080. Its totient is φ = 818633472.

The previous prime is 1228411111. The next prime is 1228411133. The reversal of 1228411131 is 1311148221.

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

It is not a de Polignac number, because 1228411131 - 2⁵ = 1228411099 is a prime.

It is a super-2 number, since 2×1228411131² = 3017987813529398322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1228411133) 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, 67326 + ... + 83603.

It is an arithmetic number, because the mean of its divisors is an integer number (204812010).

Almost surely, 2^1228411131 is an apocalyptic number.

1228411131 is a deficient number, since it is larger than the sum of its proper divisors (410084949).

1228411131 is a wasteful number, since it uses less digits than its factorization.

1228411131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153645.

The product of its digits is 384, while the sum is 24.

The square root of 1228411131 is about 35048.6965663489. The cubic root of 1228411131 is about 1070.9797213522.

Adding to 1228411131 its reverse (1311148221), we get a palindrome (2539559352).

The spelling of 1228411131 in words is "one billion, two hundred twenty-eight million, four hundred eleven thousand, one hundred thirty-one".