1224133121431 has 4 divisors (see below), whose sum is σ = 1335417950664. Its totient is φ = 1112848292200.

The previous prime is 1224133121383. The next prime is 1224133121459. The reversal of 1224133121431 is 1341213314221.

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 1224133121431 - 2⁷ = 1224133121303 is a prime.

It is a super-2 number, since 2×1224133121431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224133121431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224133121131) 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, 55642414600 + ... + 55642414621.

It is an arithmetic number, because the mean of its divisors is an integer number (333854487666).

Almost surely, 2^{1224133121431} is an apocalyptic number.

1224133121431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1224133121431 is a deficient number, since it is larger than the sum of its proper divisors (111284829233).

1224133121431 is a wasteful number, since it uses less digits than its factorization.

1224133121431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111284829232.

The product of its digits is 3456, while the sum is 28.

Adding to 1224133121431 its reverse (1341213314221), we get a palindrome (2565346435652).

The spelling of 1224133121431 in words is "one trillion, two hundred twenty-four billion, one hundred thirty-three million, one hundred twenty-one thousand, four hundred thirty-one".