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101231420453 = 536412979761
BaseRepresentation
bin101111001000111011…
…1001110010000100101
3100200021222202222112122
41132101313032100211
53124310220423303
6114301032355325
710212415606412
oct1362167162045
9320258688478
10101231420453
1139a28552559
1217752245b45
1397139855b7
144c8480d109
1529773cee38
hex1791dce425

101231420453 has 8 divisors (see below), whose sum is σ = 103302389016. Its totient is φ = 99166412800.

The previous prime is 101231420449. The next prime is 101231420503. The reversal of 101231420453 is 354024132101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35991022369 + 65240398084 = 189713^2 + 255422^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101231420453 - 22 = 101231420449 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 (101231420153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455908 + ... + 1523853.

It is an arithmetic number, because the mean of its divisors is an integer number (12912798627).

Almost surely, 2101231420453 is an apocalyptic number.

It is an amenable number.

101231420453 is a deficient number, since it is larger than the sum of its proper divisors (2070968563).

101231420453 is an equidigital number, since it uses as much as digits as its factorization.

101231420453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980455.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 101231420453 its reverse (354024132101), we get a palindrome (455255552554).

The spelling of 101231420453 in words is "one hundred one billion, two hundred thirty-one million, four hundred twenty thousand, four hundred fifty-three".

Divisors: 1 53 641 33973 2979761 157927333 1910026801 101231420453