20030213025545 has 16 divisors (see below), whose sum is σ = 24192377658768. Its totient is φ = 15920114595840.

The previous prime is 20030213025521. The next prime is 20030213025601. The reversal of 20030213025545 is 54552031203002.

It can be written as a sum of positive squares in 8 ways, for example, as 117797222656 + 19912415802889 = 343216^2 + 4462333^2 .

It is not a de Polignac number, because 20030213025545 - 2²⁶ = 20030145916681 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4701965 + ... + 7884725.

It is an arithmetic number, because the mean of its divisors is an integer number (1512023603673).

Almost surely, 2^{20030213025545} is an apocalyptic number.

It is an amenable number.

20030213025545 is a deficient number, since it is larger than the sum of its proper divisors (4162164633223).

20030213025545 is a wasteful number, since it uses less digits than its factorization.

20030213025545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190940.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 20030213025545 its reverse (54552031203002), we get a palindrome (74582244228547).

The spelling of 20030213025545 in words is "twenty trillion, thirty billion, two hundred thirteen million, twenty-five thousand, five hundred forty-five".