1115420442234 has 128 divisors (see below), whose sum is σ = 2598729744384. Its totient is φ = 312586560000.

The previous prime is 1115420442217. The next prime is 1115420442239. The reversal of 1115420442234 is 4322440245111.

It is a junction number, because it is equal to n+sod(n) for n = 1115420442195 and 1115420442204.

It is not an unprimeable number, because it can be changed into a prime (1115420442239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 969087559 + ... + 969088709.

It is an arithmetic number, because the mean of its divisors is an integer number (20302576128).

Almost surely, 2^{1115420442234} is an apocalyptic number.

1115420442234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115420442234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299364872192).

1115420442234 is an abundant number, since it is smaller than the sum of its proper divisors (1483309302150).

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

1115420442234 is a wasteful number, since it uses less digits than its factorization.

1115420442234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 1115420442234 its reverse (4322440245111), we get a palindrome (5437860687345).

The spelling of 1115420442234 in words is "one trillion, one hundred fifteen billion, four hundred twenty million, four hundred forty-two thousand, two hundred thirty-four".