1242431411 has 16 divisors (see below), whose sum is σ = 1401206016. Its totient is φ = 1093045536.

The previous prime is 1242431371. The next prime is 1242431429. The reversal of 1242431411 is 1141342421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242431411 is a prime.

It is a super-2 number, since 2×1242431411² = 3087271622078901842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242431431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77276 + ... + 91958.

It is an arithmetic number, because the mean of its divisors is an integer number (87575376).

Almost surely, 2^1242431411 is an apocalyptic number.

1242431411 is a deficient number, since it is larger than the sum of its proper divisors (158774605).

1242431411 is a wasteful number, since it uses less digits than its factorization.

1242431411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15002.

The product of its digits is 768, while the sum is 23.

The square root of 1242431411 is about 35248.1405325160. The cubic root of 1242431411 is about 1075.0388047287.

Adding to 1242431411 its reverse (1141342421), we get a palindrome (2383773832).

The spelling of 1242431411 in words is "one billion, two hundred forty-two million, four hundred thirty-one thousand, four hundred eleven".