1242422031 has 8 divisors (see below), whose sum is σ = 1713685680. Its totient is φ = 799719872.

The previous prime is 1242422021. The next prime is 1242422053. The reversal of 1242422031 is 1302242421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1242422031 - 2⁷ = 1242421903 is a prime.

It is a super-2 number, since 2×1242422031² = 3087225006228329922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1242421989 and 1242422007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242422011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7140270 + ... + 7140443.

It is an arithmetic number, because the mean of its divisors is an integer number (214210710).

Almost surely, 2^1242422031 is an apocalyptic number.

1242422031 is a deficient number, since it is larger than the sum of its proper divisors (471263649).

1242422031 is a wasteful number, since it uses less digits than its factorization.

1242422031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14280745.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1242422031 is about 35248.0074756007. The cubic root of 1242422031 is about 1075.0360993105.

Adding to 1242422031 its reverse (1302242421), we get a palindrome (2544664452).

The spelling of 1242422031 in words is "one billion, two hundred forty-two million, four hundred twenty-two thousand, thirty-one".