Search a number
-
+
1020101231311 = 17557991108709
BaseRepresentation
bin11101101100000101100…
…01011000001011001111
310121112001121102202222121
432312002301120023033
5113203131403400221
62100343353353411
7133462026253651
oct16660261301317
93545047382877
101020101231311
11363693607558
12145851a08867
137526c928556
1437531d606d1
151b80632ba41
hexed82c582cf

1020101231311 has 16 divisors (see below), whose sum is σ = 1083148174080. Its totient is φ = 957395704320.

The previous prime is 1020101231309. The next prime is 1020101231333. The reversal of 1020101231311 is 1131321010201.

It is a happy number.

1020101231311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1020101231311 - 21 = 1020101231309 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 (1020101231381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9329425 + ... + 9438133.

It is an arithmetic number, because the mean of its divisors is an integer number (67696760880).

Almost surely, 21020101231311 is an apocalyptic number.

1020101231311 is a deficient number, since it is larger than the sum of its proper divisors (63046942769).

1020101231311 is a wasteful number, since it uses less digits than its factorization.

1020101231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110274.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1020101231311 its reverse (1131321010201), we get a palindrome (2151422241512).

The spelling of 1020101231311 in words is "one trillion, twenty billion, one hundred one million, two hundred thirty-one thousand, three hundred eleven".

Divisors: 1 17 557 991 9469 16847 108709 551987 1848053 9383779 60550913 107730619 1029365521 1831420523 60005954783 1020101231311