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1232013001 = 1772471353
BaseRepresentation
bin100100101101111…
…0000011011001001
310011212020202010011
41021123300123021
510010343404001
6322130151521
742346636432
oct11133603311
93155222104
101232013001
1158249166a
122a47225a1
1316832279b
14b98a4489
1573260d51
hex496f06c9

1232013001 has 4 divisors (see below), whose sum is σ = 1304484372. Its totient is φ = 1159541632.

The previous prime is 1232012989. The next prime is 1232013031. The reversal of 1232013001 is 1003102321.

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 1043225401 + 188787600 = 32299^2 + 13740^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232013001 - 29 = 1232012489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232013031) 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, 36235660 + ... + 36235693.

It is an arithmetic number, because the mean of its divisors is an integer number (326121093).

Almost surely, 21232013001 is an apocalyptic number.

It is an amenable number.

1232013001 is a deficient number, since it is larger than the sum of its proper divisors (72471371).

1232013001 is an equidigital number, since it uses as much as digits as its factorization.

1232013001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72471370.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1232013001 is about 35100.0427492617. The cubic root of 1232013001 is about 1072.0254531089.

Adding to 1232013001 its reverse (1003102321), we get a palindrome (2235115322).

The spelling of 1232013001 in words is "one billion, two hundred thirty-two million, thirteen thousand, one".

Divisors: 1 17 72471353 1232013001