1245344334234 has 384 divisors, whose sum is σ = 3410665574400. Its totient is φ = 294344294400.

The previous prime is 1245344334211. The next prime is 1245344334239. The reversal of 1245344334234 is 4324334435421.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1245344334239) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1942814554 + ... + 1942815194.

It is an arithmetic number, because the mean of its divisors is an integer number (8881941600).

Almost surely, 2^{1245344334234} is an apocalyptic number.

1245344334234 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 1245344334234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1705332787200).

1245344334234 is an abundant number, since it is smaller than the sum of its proper divisors (2165321240166).

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

1245344334234 is a wasteful number, since it uses less digits than its factorization.

1245344334234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 993 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 42.

Adding to 1245344334234 its reverse (4324334435421), we get a palindrome (5569678769655).

The spelling of 1245344334234 in words is "one trillion, two hundred forty-five billion, three hundred forty-four million, three hundred thirty-four thousand, two hundred thirty-four".