20313101144 has 32 divisors (see below), whose sum is σ = 43601548320. Its totient is φ = 8690919936.

The previous prime is 20313101111. The next prime is 20313101173. The reversal of 20313101144 is 44110131302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272639 + ... + 339054.

It is an arithmetic number, because the mean of its divisors is an integer number (1362548385).

Almost surely, 2^20313101144 is an apocalyptic number.

It is an amenable number.

20313101144 is an abundant number, since it is smaller than the sum of its proper divisors (23288447176).

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

20313101144 is a wasteful number, since it uses less digits than its factorization.

20313101144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612299 (or 612295 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20313101144 its reverse (44110131302), we get a palindrome (64423232446).

The spelling of 20313101144 in words is "twenty billion, three hundred thirteen million, one hundred one thousand, one hundred forty-four".