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113210040421 = 149759798929
BaseRepresentation
bin110100101101111011…
…0000010000001100101
3101211012210122221000001
41221123312002001211
53323323232243141
6124001420021301
711115310315612
oct1513366020145
9354183587001
10113210040421
1144015130a85
1219b35991831
13a8a25727ca
14569d663509
152e28d2aa31
hex1a5bd82065

113210040421 has 4 divisors (see below), whose sum is σ = 113969839500. Its totient is φ = 112450241344.

The previous prime is 113210040403. The next prime is 113210040467. The reversal of 113210040421 is 124040012311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124040012311 = 1204110301471.

It can be written as a sum of positive squares in 2 ways, for example, as 59675649796 + 53534390625 = 244286^2 + 231375^2 .

It is a cyclic number.

It is not a de Polignac number, because 113210040421 - 29 = 113210039909 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 (113210040221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379899316 + ... + 379899613.

It is an arithmetic number, because the mean of its divisors is an integer number (28492459875).

Almost surely, 2113210040421 is an apocalyptic number.

It is an amenable number.

113210040421 is a deficient number, since it is larger than the sum of its proper divisors (759799079).

113210040421 is an equidigital number, since it uses as much as digits as its factorization.

113210040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759799078.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 113210040421 its reverse (124040012311), we get a palindrome (237250052732).

The spelling of 113210040421 in words is "one hundred thirteen billion, two hundred ten million, forty thousand, four hundred twenty-one".

Divisors: 1 149 759798929 113210040421