1242303131 has 8 divisors (see below), whose sum is σ = 1297868400. Its totient is φ = 1187586400.

The previous prime is 1242303121. The next prime is 1242303133. The reversal of 1242303131 is 1313032421.

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 1242303131 - 2¹⁰ = 1242302107 is a prime.

It is a super-2 number, since 2×1242303131² = 3086634138584806322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242303133) 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, 209141 + ... + 214998.

It is an arithmetic number, because the mean of its divisors is an integer number (162233550).

Almost surely, 2^1242303131 is an apocalyptic number.

1242303131 is a deficient number, since it is larger than the sum of its proper divisors (55565269).

1242303131 is a wasteful number, since it uses less digits than its factorization.

1242303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424269.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1242303131 is about 35246.3208150865. The cubic root of 1242303131 is about 1075.0018045039.

Adding to 1242303131 its reverse (1313032421), we get a palindrome (2555335552).

The spelling of 1242303131 in words is "one billion, two hundred forty-two million, three hundred three thousand, one hundred thirty-one".