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1311201022322 = 21279512588359
BaseRepresentation
bin10011000101001001101…
…010111101000101110010
311122100102212001100020202
4103011021222331011302
5132440314430203242
62442205112235202
7163505532540212
oct23051152750562
94570385040222
101311201022322
11466093881034
1219215269bb02
13968518764b9
1447669026242
1524192471932
hex13149abd172

1311201022322 has 8 divisors (see below), whose sum is σ = 1968339302400. Its totient is φ = 655087921524.

The previous prime is 1311201022303. The next prime is 1311201022399. The reversal of 1311201022322 is 2232201021131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1311201022294 and 1311201022303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256291622 + ... + 256296737.

It is an arithmetic number, because the mean of its divisors is an integer number (246042412800).

Almost surely, 21311201022322 is an apocalyptic number.

1311201022322 is a deficient number, since it is larger than the sum of its proper divisors (657138280078).

1311201022322 is a wasteful number, since it uses less digits than its factorization.

1311201022322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512589640.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1311201022322 its reverse (2232201021131), we get a palindrome (3543402043453).

The spelling of 1311201022322 in words is "one trillion, three hundred eleven billion, two hundred one million, twenty-two thousand, three hundred twenty-two".

Divisors: 1 2 1279 2558 512588359 1025176718 655600511161 1311201022322