20003111343045 has 24 divisors (see below), whose sum is σ = 35867647927800. Its totient is φ = 10300452736896.

The previous prime is 20003111343031. The next prime is 20003111343053. The reversal of 20003111343045 is 54034311130002.

It is a happy number.

20003111343045 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 311 + 1 + 343 + 0 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5775836470209 + 14227274872836 = 2403297^2 + 3771906^2 .

It is not a de Polignac number, because 20003111343045 - 2⁵ = 20003111343013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7664026030 + ... + 7664028639.

It is an arithmetic number, because the mean of its divisors is an integer number (1494485330325).

Almost surely, 2^{20003111343045} is an apocalyptic number.

It is an amenable number.

20003111343045 is a deficient number, since it is larger than the sum of its proper divisors (15864536584755).

20003111343045 is a wasteful number, since it uses less digits than its factorization.

20003111343045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15328054709 (or 15328054706 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 20003111343045 its reverse (54034311130002), we get a palindrome (74037422473047).

The spelling of 20003111343045 in words is "twenty trillion, three billion, one hundred eleven million, three hundred forty-three thousand, forty-five".