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1312001322122 = 24397757207763
BaseRepresentation
bin10011000101111001010…
…111110110110010001010
311122102111121221210012002
4103011321113312302022
5132443434314301442
62442420341351002
7163534421142611
oct23057127666212
94572447853162
101312001322122
114664645a7127
12192336708462
139694b60298a
144770342c878
15241dc857732
hex131795f6c8a

1312001322122 has 32 divisors (see below), whose sum is σ = 2037227408832. Its totient is φ = 633298466304.

The previous prime is 1312001322113. The next prime is 1312001322139. The reversal of 1312001322122 is 2212231002131.

It is a junction number, because it is equal to n+sod(n) for n = 1312001322094 and 1312001322103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6211013 + ... + 6418775.

It is an arithmetic number, because the mean of its divisors is an integer number (63663356526).

Almost surely, 21312001322122 is an apocalyptic number.

1312001322122 is a deficient number, since it is larger than the sum of its proper divisors (725226086710).

1312001322122 is a wasteful number, since it uses less digits than its factorization.

1312001322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208662.

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

Adding to 1312001322122 its reverse (2212231002131), we get a palindrome (3524232324253).

The spelling of 1312001322122 in words is "one trillion, three hundred twelve billion, one million, three hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 43 86 97 194 757 1514 4171 8342 32551 65102 73429 146858 207763 415526 3157447 6314894 8933809 17867618 20153011 40306022 157276591 314553182 866579473 1733158946 6762893413 13525786826 15255829327 30511658654 656000661061 1312001322122