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101330101031 = 678911492541
BaseRepresentation
bin101111001011110111…
…1101010001100100111
3100200112212110110211212
41132113233222030213
53130011001213111
6114314515422035
710215024435035
oct1362757521447
9320485413755
10101330101031
1139a79222755
121777b2b491b
13972b256683
144c93979555
152980dc398b
hex1797bea327

101330101031 has 4 divisors (see below), whose sum is σ = 101331661464. Its totient is φ = 101328540600.

The previous prime is 101330101007. The next prime is 101330101079. The reversal of 101330101031 is 130101033101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130101033101 = 1310007771777.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101330101031 is a prime.

It is a super-2 number, since 2×1013301010312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101330100997 and 101330101015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101330101231) 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, 678380 + ... + 814161.

It is an arithmetic number, because the mean of its divisors is an integer number (25332915366).

Almost surely, 2101330101031 is an apocalyptic number.

101330101031 is a deficient number, since it is larger than the sum of its proper divisors (1560433).

101330101031 is an equidigital number, since it uses as much as digits as its factorization.

101330101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560432.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 101330101031 its reverse (130101033101), we get a palindrome (231431134132).

The spelling of 101330101031 in words is "one hundred one billion, three hundred thirty million, one hundred one thousand, thirty-one".

Divisors: 1 67891 1492541 101330101031