1242410504520 has 128 divisors (see below), whose sum is σ = 3790269728640. Its totient is φ = 325711626240.

The previous prime is 1242410504519. The next prime is 1242410504527. The reversal of 1242410504520 is 254050142421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1242410504527) 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, 14619592 + ... + 14704328.

It is an arithmetic number, because the mean of its divisors is an integer number (29611482255).

Almost surely, 2^{1242410504520} is an apocalyptic number.

1242410504520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242410504520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895134864320).

1242410504520 is an abundant number, since it is smaller than the sum of its proper divisors (2547859224120).

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

1242410504520 is a wasteful number, since it uses less digits than its factorization.

1242410504520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86815 (or 86811 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 1242410504520 its reverse (254050142421), we get a palindrome (1496460646941).

The spelling of 1242410504520 in words is "one trillion, two hundred forty-two billion, four hundred ten million, five hundred four thousand, five hundred twenty".