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21232032003013 = 131633233231001
BaseRepresentation
bin1001101001111011101111…
…01110011011001111000101
32210011202120211000222010011
410310331313232123033011
510240331200143044023
6113053505535430221
74320651355165546
oct464756756331705
983152524028104
1021232032003013
1168464aa603097
12246aab0685371
13bb0230c34780
145358c8a1a4cd
1526c461c8050d
hex134f77b9b3c5

21232032003013 has 4 divisors (see below), whose sum is σ = 22865265234028. Its totient is φ = 19598798772000.

The previous prime is 21232032002999. The next prime is 21232032003089. The reversal of 21232032003013 is 31030023023212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8531411456164 + 12700620546849 = 2920858^2 + 3563793^2 .

It is a cyclic number.

It is not a de Polignac number, because 21232032003013 - 213 = 21232031994821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232032000013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816616615488 + ... + 816616615513.

It is an arithmetic number, because the mean of its divisors is an integer number (5716316308507).

Almost surely, 221232032003013 is an apocalyptic number.

It is an amenable number.

21232032003013 is a deficient number, since it is larger than the sum of its proper divisors (1633233231015).

21232032003013 is a wasteful number, since it uses less digits than its factorization.

21232032003013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633233231014.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21232032003013 its reverse (31030023023212), we get a palindrome (52262055026225).

The spelling of 21232032003013 in words is "twenty-one trillion, two hundred thirty-two billion, thirty-two million, three thousand, thirteen".

Divisors: 1 13 1633233231001 21232032003013