1243050431 has 16 divisors (see below), whose sum is σ = 1467691008. Its totient is φ = 1030233600.

The previous prime is 1243050377. The next prime is 1243050437. The reversal of 1243050431 is 1340503421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1243050431 is a prime.

It is a super-2 number, since 2×1243050431² = 3090348748018571522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1243050397 and 1243050406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243050437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457166 + ... + 459876.

It is an arithmetic number, because the mean of its divisors is an integer number (91730688).

Almost surely, 2^1243050431 is an apocalyptic number.

1243050431 is a deficient number, since it is larger than the sum of its proper divisors (224640577).

1243050431 is a wasteful number, since it uses less digits than its factorization.

1243050431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1243050431 is about 35256.9203277881. The cubic root of 1243050431 is about 1075.2173149267.

Adding to 1243050431 its reverse (1340503421), we get a palindrome (2583553852).

The spelling of 1243050431 in words is "one billion, two hundred forty-three million, fifty thousand, four hundred thirty-one".