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1200213431211 = 35920893245987
BaseRepresentation
bin10001011101110010010…
…010111001001110101011
311020201221221022112120010
4101131302102321032223
5124131014114244321
62315212003103003
7152466256560324
oct21356222711653
94221857275503
101200213431211
1142300a213123
12174739071a63
1389244895572
144213aa0544b
15213487e9676
hex117724b93ab

1200213431211 has 16 divisors (see below), whose sum is σ = 1628187580800. Its totient is φ = 786203777088.

The previous prime is 1200213431177. The next prime is 1200213431227. The reversal of 1200213431211 is 1121343120021.

It is not a de Polignac number, because 1200213431211 - 26 = 1200213431147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200213431611) 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, 1253241 + ... + 1992746.

It is an arithmetic number, because the mean of its divisors is an integer number (101761723800).

Almost surely, 21200213431211 is an apocalyptic number.

1200213431211 is a deficient number, since it is larger than the sum of its proper divisors (427974149589).

1200213431211 is a wasteful number, since it uses less digits than its factorization.

1200213431211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248138.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1200213431211 its reverse (1121343120021), we get a palindrome (2321556551232).

The spelling of 1200213431211 in words is "one trillion, two hundred billion, two hundred thirteen million, four hundred thirty-one thousand, two hundred eleven".

Divisors: 1 3 59 177 2089 6267 123251 369753 3245987 9737961 191513233 574539699 6780866843 20342600529 400071143737 1200213431211