1242241431 has 32 divisors (see below), whose sum is σ = 1761108480. Its totient is φ = 777283584.

The previous prime is 1242241417. The next prime is 1242241447. The reversal of 1242241431 is 1341422421.

It is not a de Polignac number, because 1242241431 - 2¹⁰ = 1242240407 is a prime.

It is a super-2 number, since 2×1242241431² = 3086327545785855522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242241031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 833535 + ... + 835023.

It is an arithmetic number, because the mean of its divisors is an integer number (55034640).

Almost surely, 2^1242241431 is an apocalyptic number.

1242241431 is a deficient number, since it is larger than the sum of its proper divisors (518867049).

1242241431 is a wasteful number, since it uses less digits than its factorization.

1242241431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its digits is 1536, while the sum is 24.

The square root of 1242241431 is about 35245.4455355582. The cubic root of 1242241431 is about 1074.9840072616.

Adding to 1242241431 its reverse (1341422421), we get a palindrome (2583663852).

The spelling of 1242241431 in words is "one billion, two hundred forty-two million, two hundred forty-one thousand, four hundred thirty-one".