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1310051121 = 31923398641
BaseRepresentation
bin100111000010101…
…1100101100110001
310101022002111021220
41032011130230301
510140333113441
6333554535253
744315152011
oct11605345461
93338074256
101310051121
11612542885
12306897529
1317b546ba2
14c5db9c41
157a028466
hex4e15cb31

1310051121 has 16 divisors (see below), whose sum is σ = 1846578240. Its totient is φ = 823841280.

The previous prime is 1310051111. The next prime is 1310051123. The reversal of 1310051121 is 1211500131.

It is not a de Polignac number, because 1310051121 - 210 = 1310050097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1310051121.

It is not an unprimeable number, because it can be changed into a prime (1310051123) 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, 36040 + ... + 62601.

It is an arithmetic number, because the mean of its divisors is an integer number (115411140).

Almost surely, 21310051121 is an apocalyptic number.

It is an amenable number.

1310051121 is a deficient number, since it is larger than the sum of its proper divisors (536527119).

1310051121 is a wasteful number, since it uses less digits than its factorization.

1310051121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98896.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1310051121 is about 36194.6283445486. The cubic root of 1310051121 is about 1094.1984142037.

Adding to 1310051121 its reverse (1211500131), we get a palindrome (2521551252).

The spelling of 1310051121 in words is "one billion, three hundred ten million, fifty-one thousand, one hundred twenty-one".

Divisors: 1 3 19 57 233 699 4427 13281 98641 295923 1874179 5622537 22983353 68950059 436683707 1310051121