1242342132510 has 64 divisors (see below), whose sum is σ = 3050029458432. Its totient is φ = 323713316736.

The previous prime is 1242342132509. The next prime is 1242342132529. The reversal of 1242342132510 is 152312432421.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145657 + ... + 1583003.

It is an arithmetic number, because the mean of its divisors is an integer number (47656710288).

Almost surely, 2^{1242342132510} is an apocalyptic number.

1242342132510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242342132510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1525014729216).

1242342132510 is an abundant number, since it is smaller than the sum of its proper divisors (1807687325922).

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

1242342132510 is a wasteful number, since it uses less digits than its factorization.

1242342132510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438017.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1242342132510 its reverse (152312432421), we get a palindrome (1394654564931).

The spelling of 1242342132510 in words is "one trillion, two hundred forty-two billion, three hundred forty-two million, one hundred thirty-two thousand, five hundred ten".