13042420050 has 96 divisors (see below), whose sum is σ = 35360308224. Its totient is φ = 3155112000.

The previous prime is 13042419979. The next prime is 13042420103. The reversal of 13042420050 is 5002424031.

It is a junction number, because it is equal to n+sod(n) for n = 13042419999 and 13042420026.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 795435 + ... + 811665.

It is an arithmetic number, because the mean of its divisors is an integer number (368336544).

Almost surely, 2^13042420050 is an apocalyptic number.

13042420050 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 13042420050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17680154112).

13042420050 is an abundant number, since it is smaller than the sum of its proper divisors (22317888174).

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

13042420050 is a wasteful number, since it uses less digits than its factorization.

13042420050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16744 (or 16739 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 13042420050 its reverse (5002424031), we get a palindrome (18044844081).

The spelling of 13042420050 in words is "thirteen billion, forty-two million, four hundred twenty thousand, fifty".