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1232101030021 = 2834353713887
BaseRepresentation
bin10001111011011110111…
…100011011100010000101
311100210021020110101201021
4101323132330123202011
5130141320330430041
62342004105031141
7155005416645601
oct21733674334205
94323236411637
101232101030021
11435592a02074
1217a9581854b1
138c25703b724
14438c3a0a501
15220b2ed1cd1
hex11edef1b885

1232101030021 has 4 divisors (see below), whose sum is σ = 1236454744192. Its totient is φ = 1227747315852.

The previous prime is 1232101029961. The next prime is 1232101030067. The reversal of 1232101030021 is 1200301012321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1232101030021 - 231 = 1229953546373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232101029977 and 1232101030004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232101030081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176856661 + ... + 2176857226.

It is an arithmetic number, because the mean of its divisors is an integer number (309113686048).

Almost surely, 21232101030021 is an apocalyptic number.

It is an amenable number.

1232101030021 is a deficient number, since it is larger than the sum of its proper divisors (4353714171).

1232101030021 is an equidigital number, since it uses as much as digits as its factorization.

1232101030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353714170.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1232101030021 its reverse (1200301012321), we get a palindrome (2432402042342).

The spelling of 1232101030021 in words is "one trillion, two hundred thirty-two billion, one hundred one million, thirty thousand, twenty-one".

Divisors: 1 283 4353713887 1232101030021