20313542440144 has 20 divisors (see below), whose sum is σ = 39667389965824. Its totient is φ = 10076796642528.

The previous prime is 20313542440129. The next prime is 20313542440159. The reversal of 20313542440144 is 44104424531302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20313542440129) and next prime (20313542440159).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4998409002 + ... + 4998413065.

Almost surely, 2^{20313542440144} is an apocalyptic number.

It is an amenable number.

20313542440144 is a deficient number, since it is larger than the sum of its proper divisors (19353847525680).

20313542440144 is a wasteful number, since it uses less digits than its factorization.

20313542440144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996822202 (or 9996822196 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 20313542440144 its reverse (44104424531302), we get a palindrome (64417966971446).

The spelling of 20313542440144 in words is "twenty trillion, three hundred thirteen billion, five hundred forty-two million, four hundred forty thousand, one hundred forty-four".