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130440011200021 = 612112130989711
BaseRepresentation
bin11101101010001001101110…
…100010000011011000010101
3122002211221110122201012210201
4131222021232202003120111
5114044112120331400041
61141231151445020501
736321660035201425
oct3552115642033025
9562757418635721
10130440011200021
1138620330838386
12127681939b4731
1357a25953978c3
14242d48a206485
15101309d93c631
hex76a26e883615

130440011200021 has 4 divisors (see below), whose sum is σ = 130442142250944. Its totient is φ = 130437880149100.

The previous prime is 130440011200007. The next prime is 130440011200091. The reversal of 130440011200021 is 120002110044031.

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 a de Polignac number, because none of the positive numbers 2k-130440011200021 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 (130440011200091) 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, 1065433645 + ... + 1065556066.

It is an arithmetic number, because the mean of its divisors is an integer number (32610535562736).

Almost surely, 2130440011200021 is an apocalyptic number.

It is an amenable number.

130440011200021 is a deficient number, since it is larger than the sum of its proper divisors (2131050923).

130440011200021 is an equidigital number, since it uses as much as digits as its factorization.

130440011200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131050922.

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

Adding to 130440011200021 its reverse (120002110044031), we get a palindrome (250442121244052).

The spelling of 130440011200021 in words is "one hundred thirty trillion, four hundred forty billion, eleven million, two hundred thousand, twenty-one".

Divisors: 1 61211 2130989711 130440011200021