20119302144 has 156 divisors (see below), whose sum is σ = 58459167000. Its totient is φ = 6666780672.

The previous prime is 20119302143. The next prime is 20119302199. The reversal of 20119302144 is 44120391102.

It is a happy number.

20119302144 is a `hidden beast` number, since 201 + 19 + 302 + 144 = 666.

It is not an unprimeable number, because it can be changed into a prime (20119302143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6597132 + ... + 6600180.

It is an arithmetic number, because the mean of its divisors is an integer number (374738250).

Almost surely, 2^20119302144 is an apocalyptic number.

20119302144 is a gapful number since it is divisible by the number (24) 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 20119302144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29229583500).

20119302144 is an abundant number, since it is smaller than the sum of its proper divisors (38339864856).

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

20119302144 is a wasteful number, since it uses less digits than its factorization.

20119302144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258 (or 3233 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 20119302144 its reverse (44120391102), we get a palindrome (64239693246).

The spelling of 20119302144 in words is "twenty billion, one hundred nineteen million, three hundred two thousand, one hundred forty-four".