1242303020 has 48 divisors (see below), whose sum is σ = 2984717568. Its totient is φ = 425476800.

The previous prime is 1242303001. The next prime is 1242303037. The reversal of 1242303020 is 203032421.

It is a super-2 number, since 2×1242303020² = 3086633587002240800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1242303020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142919 + ... + 151361.

It is an arithmetic number, because the mean of its divisors is an integer number (62181616).

Almost surely, 2^1242303020 is an apocalyptic number.

1242303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242303020 is an abundant number, since it is smaller than the sum of its proper divisors (1742414548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242303020 is a wasteful number, since it uses less digits than its factorization.

1242303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510 (or 9508 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1242303020 is about 35246.3192404540. The cubic root of 1242303020 is about 1075.0017724867.

Adding to 1242303020 its reverse (203032421), we get a palindrome (1445335441).

The spelling of 1242303020 in words is "one billion, two hundred forty-two million, three hundred three thousand, twenty".