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1311133142210 = 251491934559353
BaseRepresentation
bin10011000101000101101…
…000000000110011000010
311122100021010022200020112
4103011011220000303002
5132440200041022320
62442154245311322
7163504046553053
oct23050550006302
94570233280215
101311133142210
11466059528771
12192133a05542
139684079a858
144765ddd672a
152418b513ec5
hex13145a00cc2

1311133142210 has 32 divisors (see below), whose sum is σ = 2388189625200. Its totient is φ = 518234185728.

The previous prime is 1311133142197. The next prime is 1311133142213. The reversal of 1311133142210 is 122413311131.

It can be written as a sum of positive squares in 8 ways, for example, as 50320808329 + 1260812333881 = 224323^2 + 1122859^2 .

It is not an unprimeable number, because it can be changed into a prime (1311133142213) 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, 1992107 + ... + 2567246.

Almost surely, 21311133142210 is an apocalyptic number.

1311133142210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311133142210 is a deficient number, since it is larger than the sum of its proper divisors (1077056482990).

1311133142210 is a wasteful number, since it uses less digits than its factorization.

1311133142210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559702.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1311133142210 its reverse (122413311131), we get a palindrome (1433546453341).

The spelling of 1311133142210 in words is "one trillion, three hundred eleven billion, one hundred thirty-three million, one hundred forty-two thousand, two hundred ten".

Divisors: 1 2 5 10 149 193 298 386 745 965 1490 1930 28757 57514 143785 287570 4559353 9118706 22796765 45593530 679343597 879955129 1358687194 1759910258 3396717985 4399775645 6793435970 8799551290 131113314221 262226628442 655566571105 1311133142210