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1202112203131 = 7269638402657
BaseRepresentation
bin10001011111100011011…
…110001000100101111011
311020220212021012010222001
4101133203132020211323
5124143411211000011
62320124232241431
7152564314063450
oct21374336104573
94226767163861
101202112203131
114238a3aaa614
12174b88b40277
1389488089148
144227ac6d827
152140a3637c1
hex117e378897b

1202112203131 has 8 divisors (see below), whose sum is σ = 1378949741280. Its totient is φ = 1026551470848.

The previous prime is 1202112203029. The next prime is 1202112203141. The reversal of 1202112203131 is 1313022112021.

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

It is a cyclic number.

It is not a de Polignac number, because 1202112203131 - 237 = 1064673249659 is a prime.

It is a super-2 number, since 2×12021122031312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202112203099 and 1202112203108.

It is not an unprimeable number, because it can be changed into a prime (1202112203141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319199446 + ... + 319203211.

It is an arithmetic number, because the mean of its divisors is an integer number (172368717660).

Almost surely, 21202112203131 is an apocalyptic number.

1202112203131 is a deficient number, since it is larger than the sum of its proper divisors (176837538149).

1202112203131 is an equidigital number, since it uses as much as digits as its factorization.

1202112203131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638402933.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1202112203131 its reverse (1313022112021), we get a palindrome (2515134315152).

The spelling of 1202112203131 in words is "one trillion, two hundred two billion, one hundred twelve million, two hundred three thousand, one hundred thirty-one".

Divisors: 1 7 269 1883 638402657 4468818599 171730314733 1202112203131