1241243011431 has 48 divisors (see below), whose sum is σ = 1933762128480. Its totient is φ = 764640000000.

The previous prime is 1241243011427. The next prime is 1241243011441. The reversal of 1241243011431 is 1341103421421.

It is a happy number.

It is not a de Polignac number, because 1241243011431 - 2² = 1241243011427 is a prime.

It is a super-2 number, since 2×1241243011431² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1241243011395 and 1241243011404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241243011441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33080181 + ... + 33117681.

It is an arithmetic number, because the mean of its divisors is an integer number (40286711010).

Almost surely, 2^{1241243011431} is an apocalyptic number.

1241243011431 is a deficient number, since it is larger than the sum of its proper divisors (692519117049).

1241243011431 is a wasteful number, since it uses less digits than its factorization.

1241243011431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42288 (or 42285 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1241243011431 its reverse (1341103421421), we get a palindrome (2582346432852).

The spelling of 1241243011431 in words is "one trillion, two hundred forty-one billion, two hundred forty-three million, eleven thousand, four hundred thirty-one".